ive got quite a few !! however im only gonna link some of my favorites here ;o
atlas's favorite mug has the aperture logo from portal on it!
in the same vein, libum is loosely based on glados!
violet's personality and occupation were inspired by entrapta from the she-ra reboot.
alastor's name came from none other than alastor moody from harry potter.
i love my gal calamity despite being quite an old oc with the typical edgy wolf aesthetic haha, but her name is a pretty obscure reference to a character (who is also a canine) from the survivors series by erin hunter of the same name.
finally, nabiin is based on a couple things, all falling under a certain trope. she seems to be an extra/throwaway character in the grand scheme of the plot but is actually spewing foreshadowing almost every time shes seen. a more commonly known example could be ronaldo from su who foreshadowed a multitude of huge events through his conspiracy theories, however nabiin is MUCH more heavily inspired by (and is almost exactly the same as in this respect) whiteout from wings of fire, a character that can see the future but only shares it in very strange and cryptic messages that most other characters dismiss as nonsense.