Returning to Pokemon

Hi guys recently acquired a switch and gone straight back into Pokemon, I dropped off after Pokemon pearl, I have pearl remastered as it came with the switch, sword and arceus, I plan to play black or white most likely through delta emulator, I constantly here that unbound and Gaia are arguably the best 2 ROMS or seemingly the most recommended, however I don’t exactly want to start with what’s regarded as the ‘best’ to think struggle to find a rom after them both, is there like a rough guide to roms that should be prioritised or any sort of significant ones or series of roms? I will most be using IOS delta so PC roms or patches aren’t very accessible to me, thanks for any advice