I'll drop one more, since I only did 1 yesterday, and this one's more light fare before I get into some of the Big Bois.
The second Pokemon ROM hack I'll be talking about on this list, Pokemon Black & White 3: Genesis. This was fun little romp through Unova again, but with the twist of the Crystal rom being the one that was used as the base, so everything was in GBC textures instead of the DS. It was a nice lil game, though really fucking hard due to some bullshit level curves. If you're trying to Nuzlocke this one, the 2nd gym is a certified run killer!
I worked my way through it though, and I gotta say, I really enjoyed the story here! It's a continuation of BW2 as expected, with your main character actually being from Humilau City and canonically being dark skinned which I thought was cool. And oh my god, 8 bit Accumula Town is TO DIE FOR. Besides that, no spoilers! Would absolutely recommend this one!
Finally I wanna give a special shoutout to DRILDO the Excadrill, which hard carried me through the back half of this game. Excadrill is a fucking MONSTER and I love it.