Looking for some Harry and Sirius fics.

Hiii. Does anybody have recommendations of some fics that focus on their relationship? (Completely platonic ofc, a familial bond). It can be about Sirius raising Harry or just them getting to know each other better after meeting in his 3rd year, just please don't let any of them die in the end 😔 (I can't do hurt/no comfort). I would prefer if there's no romance involved at all, but I mainly want for Harry and Sirius' relationship to be the main focus of the fic (seriously why are these so hard to find?).