Hmm fangames that deserve to be advertised/talked about... I'm an utter fangame hound so this might be quite a large post, though story and aesthetic are my main thing and as a result I may gloss over or misremember details aside from those.
Complete (or near complete) Emulator Games
Pokemon Victory Fire, Pokemon Resolute Version & Pokemon Mega Power: These three games are by the same creator and it shows in both the good and the bad. Lots of inventive mon use and placement, fixed non-standard starters and interesting maps but English is absolutely not the creator's first