Best matching Patronus fics?

I’m looking for fic recommendations where Harry and Draco have a matching patronus. I’ve definitely seen this trope before but I feel like I haven’t read a fic like this in so long! Draco’s patronus is up to a lot of interpretation but I just love the idea of a love so strong that it affects his patronus charm.

Extra points for a reveal with a healthy amount of angst but I’d just love to find any good fic I haven’t read before!