Cozy reads about lethal misanthropes?

I’ve recently been enjoying Naomi Kuttner’s Retired Assassin’s Guide series and it occurred to me that they have a lot in common with Martha Well’s Murderbot Diaries. Both have a main protagonist who has walked away from a career that required lots of killing and violence. Both are, to a large degree, misanthropic in their distrust of people and their desire to be left alone but in the end both get sucked into a “found family” situation with people they feel very protective of.

So my question is, can anyone think of any similar books?