Also a fan of Unbound! My last run I tried whatever setting it is that makes it so that all fully evolved pokemon have the same stat totals, which really made the game feel different and like I actually had options for building a team. Although I still found myself thinking "oh I can't put butterfree on my team, it's too weak"

My favorite hack is Gaia, it doesn't have as many features as Unbound but it's got the right vibes for a pokemon game while still having increased difficulty and QOL stuff.