I've been sitting on these for... a while and since I've been playing the game instead of making content I decided I should probably share these. Anyway it's hair defaults in Afterglow. Some use existing defaults with new textures, some are new defaults. Most of the original default replacements are rudhira's since they put a lot of work into including hidden/additional ages. I tried to keep to the spirit of the original hair whenever possible, because that's something I look for myself when looking for defaults.

umhairpompodore replaced with Ade Marco, CM-EM, 10.8k poly (this is a pretty common default)

umhairshortcombed replaced with Hezeh 30, 13.1k poly, CM-EM

ufhairbowltwist replaced with LAMZ Claw Clip Hairstyles 01, CF-EF, 8.6k poly, also replaces cfhairformal

ufhaircrown replaced with 3t2 Loli Crown, TF-EF, 3.8k poly, also includes a crownless version for the hidden non-hat states

ufhairflypigtails replaced with Newsea Cream Soda, CF-EF, 17.5k poly (again another common default)

ufhairhalo replaced with Newsea Dracarys, PF-EF, 11.5k poly (you guessed it, another common default)