I call these things "tidal planets", and what i mean by that is, stuff like Vulco, where one hemisphere is completely different from the other. I'm just looking for an explanation of how you can make them.
Examples:
Proxima Centauri B by lordvader0219
Bolka by HyperPatch
TRAPPIST-1 exoplanets (artist conceptions, unknown name) - most noticable on D and F
@Zenithspeed hmm I will will tweak that if possible