 If you liked
Tensei shitara Ken deshita
|
 ...then you might like
Virus Tensei kara Hajimaru Isekai Kansen Monogatari
|
Both MCs reincarnate into a non-human being that can take powers out of other beings in the world they reincarnate into, either as a virus (Virus Tensei) or as a special sword (Tensei shitara Ken deshita).
*Good interactions with one person close to them, well-written comedy.