Ask HN: Where to find big (2d tiled) game assets pack to buy?

I googled for multiple days now and even tho i found a whole lot of shops from itch to gamedevstore and unity asset store, all 2d tileset styles they offer are such small on contents that it would be hard to build even a complete level with it. Since im working on a freetime project of writing a simple 2d game engine in javascript, i need some graphics to create the first game with it. I want to build a platformer, and im ok with spending money for this projects graphics, but i just can't find any source offering packages in a usefull sice to build a platformer game.

Thanks for all recommendations in advance!