I will suggest you to use two main categories man/woman instead of anime/k-pop/gaming.
Then in each main categories you can pool towards:
- sports lovers
- films lovers
- book lovers
- travel lovers
- romantic feelings
- party lovers
- latin lovers
- music lovers
- game lovers
Then you can further divide those categories in mood. EG for music: punk,reggaeton,classic, pop..
You already know that those three are too little but if you insert lots of pools you should also insert a select box with a completed list of the pool.