Tensei shitara Slime Datta Ken, Tsuki ga Michibiku Isekai Douchuu Recommendations
Novels where the MC gets Isekai'd, into a desolate part of a fantasy world. Only to end up befriending a lot of non-human locals and creating an ever expanding civilization, as the Overpowered Overlord.
Tsuki ga Michibiku's... MC is a fairly ruthless "ugly" human.
Tensei shitara Slime's... MC is a lovable Slime.