Flee to federation space, theres ships going everywhere, maybe you even get to be a a Kajit or ArgonianCaitan or Gorn.

humans outside of the federation are treated with xenophobia sentiment mostly. one of the overarching themes, is that non-federation races dont like the expansionist nature of the federation, also the assimilation/melting pot of other cultures. one tng episode, where the native americans decided to leave earth 200years before tng, to find a world of thier own, said the federation became too homogenized in thier culture, and lost its unique identities.

originally cardassians and KLINGONs before allying with the humans. romulans, SHeliak, paxans,tholians, and the now defunct marquis. since STD isnt really accepted by most fans to be canon, the federation stopped expanding over that 900 years, i think the influences got stretched way too thin by then.