Both can be used as companions in a Isekai. The TWIST the pointy teeth one is considered a beauty among the hobgoblins she reincarnated as and left one is reincarnated as an elf.
both can be used in a slice of life (right one is a Miss Kobayashi archetype)
in Mecha you can give the role of grease monkey and ace pilot interchangeably to both.
Right one can break the mold of pink ranger in super sentai while left is a batman like black ranger.