so what should i do to stay in the top
Don't search global assets. Search your nieche. You are on page 1 in this one.
https://itch.io/game-assets/tag-controller
You can't compare assets for gamepads with assets for rpg maker tiles or whatever is popular in assets overall. There are 200 controller assets and 20000 pixel art assets.
You might influence how easy people find the asset, but how to be better than your direct competion would be your expertise.