>>53434088sgb97 and/or reforged should be the first recommendations from everyone's mouths.
coral was promising up until recently. adopting the polished crystal engine seems to automatically mean all the stuff about later games that i don't want to see backported into gen 2 shows up – so, abilities, bloated level up movepools, etc. if that doesn't bother you it's something to continue to keep an eye on
fool's gold is a weird one that's "let's take the original dex but fuck with every single pokemon's typing, and then change their designs to fit the new type." conceptually fine, and messing with types leads to the game feeling sufficiently 'remixed' to enable quite a few fun moments, but some of the redesigns are quite awful looking so you might not be able to get past it.
and i think that's kind of been it, hasn't it? i have no regard for prism because i cannot get past the stupidity of adding new types. im barely interested in seeing fairy shoehorned into these games, im not going to bother to learn an entirely new type matchup system for your two new fanfic types