I am completely new to RPG Maker on the dev side, but I have noticed a lot of H-games use RPG Maker as an engine. I am not much of an artist myself and I am wondering which engine would be most suited for use of assets that have already been made elsewhere or can be generated within the engine. By most suited I mean - which engine would already have the most/diverse 2D assets already available? Which engine would have the most flexibility with in-engine functions?