I also wondered how much did they from make this drama.

I would also replace clarify who you mean by "they". The personal pronoun wants to refer back to someone, but you didn't mention anyone, who could be this "they". Producers, Directors, Creators?

I want to watch more dramas or movies, and I want to find another one.

Your sentence was already good, but this reduction would make it sound more natural and concise.

If possible, I wantould like to know your favorite dramas or movies.

It sounds very direct and a little too commanding when you use "want" like this. "Would like" fits better and sounds more polite. However, your original sentence is grammatically fine.

I love foreign dramas, so I watched a lot of dramasthem.

Sounds less repetitive

I also wondered how much did they make from this drama.

I was a little confused by this sentence, there's a word missing. I was guessing you meant "make from"? That means how much money they earned from the series. If you meant something else, let me know and I can help you reword it.

It was

It was not only thea story that isabout some kingdoms, but also fight withabout fighting an evil monster.

If there's more than one monster, than change it to "fighting evil monsters."

It was very funentertaining, so I watched all of the seasons in a flash.

"Entertaining" fits better here. Anytime you are amused by a movie, TV show, or book, I would use "entertaining". I would use "fun" with activities. For example:
Going to the mall is so fun!