 If you liked
Tensei shitara Slime Datta Ken
|
 ...then you might like
Tsuki ga Michibiku Isekai Douchuu
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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.