The most favorite food for me is ramen. My favorite food is ramen. (or: My most favorite food is)
That’s because ramen has fluent (fluid?) flavor of many ingredients and the tastes are so vary (varied) by each restaurant that I never be get bored for of eating it.

For example, there are three ramen restaurants near my house, and the tastes are totally different from each other. One of them is soy sauce and fish flavor, other are and another has a different pork based flavor, so I can eat ramen everyday.
If there are only McDonald's and Burger King around here; the tastes are relatively so the same to be  which is boring.

Therefore, I love ramen and I’m glad that a new ramen restaurant has opened near my house.

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Maybe try: "There are only McDonald's and Burger King around here" or: "McDonald's and Burger King taste relatively the same, which is boring."

I hope this helps. You're doing great! Please keep writing!