Soldier 76: We’re all sweethearts now
Take any Cupid’s arrow-related pun and make Hanzo say it
Zenyatta: Love makes the world go round/that one Love is patient, love is kind quote/*makes his orbs form a heart shape during his ult*
McCree: I’ve got spurs that jingle jangle jingle~ (the song it references is about how great it is to be single/unmarried)/Let’s ride off into the sunset, shall we?
Ana: Idk probably something about a love potion or something
Orisa: I’m simply following my heart
Bastion: *plays 8-bit version of Mambo #5*
Genji: I’m a ninja of love! (ok this one’s a bit dumb)/Something related to those singing telegrams where people dress up as ninjas or whatever…(that one might also fit Tracer too honestly..)