In Taiwan, Ttea shops arcan be around every corner.

We drink tea to comfort our bad days and to cheer for our goodselves during gloomy days and to cheer ourselves up during our better days.

Every Ttea shop has at least 20 options on the menu, and every cup is allowed tocan be customized.

Foreigners may be dazzled by the long menus, but most Taiwanese people order their favorite drink without a peep.

Tea shops do not just offeroffer than more tea.

As you might know, we put often boba (an chewby sphere produced from tapioca) in our milk tea.

WeMost Taiwanese people could talk about Ttea shops all day; everyone seems to has their special menu.

AndChances are, they will willing to share with you every detail of their personal favorite.

In Taiwan, Tea shops are aroundthere are tea shops on every corner.

sounds more natural

We drink tea tofor comfort on our bad days and to cheer forelebrate our good days.

sounds more natural- your original sentence implies comforting/ cheering on the days directly

Every Ttea shop has at least 20 options on the menu, and every cup is allowed tocan be customized.

similar issue with subject-verb relationship
incorrect: an object performing an action (ex. the cup is allowed to be customized)
correct: a person performing an action (ex. you are allowed to customize each cup)

Foreigners may be dazzled by the long menu, but Taiwanese people order their favorite drink without a peep.

"without a peep" is an interesting phrase to use, it's not necessarily incorrect, but i'd also note that it's very informal

As you might know, we put boba (an chewby sphere produced from tapioca) in our milk tea.

a is used before a word starting with a consonant
an is used before a word starting with a vowel

And they will be willing to share with you every detail of their personal favorite shops.

personal favorite is implied

In Taiwan, Ttea shops are around every corner.

No need to capitalise the t in Tea shops, as they refer to a more general grouping and not the name of one specific tea shop.

We drink tea to comfort ourus on bad days and to cheer forelebrate our good days.

You don’t really say that you do something for days (like comforting bad days or cheering for good days), but you can celebrate something about a day (celebrate good days) or do things on days (comfort us on bad days)

Every Ttea shop has at least 20 options on the menu, and every cup is allowed tocan be customized.

A cup can’t really be allowed to do something.

Foreigners may be dazzloverwhelmed by the long menu, but Taiwanese people order their favorite drink without a peepsecond thought.

“Dazzled” is an unusual choice of wording here. Something like “overwhelmed” would be a better choice here.
“Without a peep” could work, but is again uncommon, so something like “without a second thought” might make more sense.

Tea shops do not just offer tea though.

The original made sense, but to me it sounds a little unfinished in the middle of a text. A text could start off like that though and it wouldn’t need anything else.

As you might know, we put boba (an chewby sphere produced from tapioca) in our milk tea.

C is a consonant and not a vowel, so it would be a not an

We Taiwanese people could talk about Ttea shops all day; everyone has their special menuown favourite drinks.

Something like “own favourite drinks” or even just “favourite drinks” would make more sense here. If you wanted to say “special menu”, then you might say “every tea shop has a special/unique menu.”

And tThey will be willing to share with you every detail of their personal favorite.

While it’s not necessarily wrong to start a sentence with and, generally it’s safer not to. Alternatively you could just combine this sentence and the previous one to make one sentence.
Could also put “with you” at the end of the sentence - “they will be willing to share every detail of their personal favourite with you”

In Taiwan, Tyou can find tea shops are around every corner.

We drink tea tofor comfort ourn bad days and to cheer forelebrate our good days.

Every Ttea shop has at least 20 options on the menu, and every cup is allowed to be customizedyou can customize every cup.

Foreigners may be dazzled by the long menu, but Taiwanese people order their favorite drink without a peepthinking twice.

As you might know, we put boba (an chewby sphere produced fromball of tapioca starch) in our milk tea.

Coconut jelly, aloe, and pudding are also very common choicetoppings.

We Taiwanese people could talk about Ttea shops all day; everyone has their special menupreferences.

NThe next time you travel to Taiwan, ask a local about their favorite tea shops.

And tThey will willingbe eager to share with you every detail of their personal favorites with you.

In Taiwan, Ttea shops are around every corner. more natural: In Taiwan, there’s a tea shop around every corner.

Interesting. When I lived in Taipei, there was a 7-Eleven around every corner, but not that many tea shops. I guess the times have changed. :-)

We drink tea to get comfort on our bad days and to cheer forelebrate our good days.

Every Tea shop has at least 20 options on the menu, and every cup is allowed tocan be customized.

Because the cup can’t do anything itself (it’s not alive and has no volition), we don’t say a cup “is allowed to” be/do something. But you could say “you are allowed to customize every cup of tea.”

Foreigners may be [dazzled | intimidated] by the long menu, but Taiwanese people order their favorite drink without a peephesitation.

“Dazzled” seems a bit odd to me, and “without a peep” is inappropriate, as another corrector already explained.

As you might know, we put boba (an chewby sphere [produced from | made of] tapioca) in our milk tea.

We Taiwanese people could talk about Ttea shops all day; everyone has their [special menu].

“Special menu” doesn’t make sense. Tea shops have menus, but people do not. Do you mean “every person has their favorite order”? Or maybe, “every tea shop has a special or unique item on its menu”?

Next time you travel to Taiwan, ask a local about their favorite tea shops., and they will…

Merge this sentence with the next.

A…and they will be willing to share with you every detail of their personal favorite.

Foreigners may be dazzled by the long menu, but Taiwanese people order their favorite drink without a peepsecond thought.

"Without a peep" means that someone is silent and obedient. It also usually infers that they're scared or uncomfortable: "We could sense that dad was angry, so we scurried to our rooms without a peep."

Next time you travel to Taiwan, ask a local about their favorite tea shops.,

Aand they will willing to share with you every detail ofabout their personal favorite.

Combined with the previous sentence.