Take these with a grain of salt this is just what first leaps out at me xD

Ari: easy, acts of service
Aubrey: is a hedgehog, but gifts of snacks from humanz thnx
Augusta: probs quality time
Calliope: HA receiving gifts she is all about this
Carmelina: words of affirmation or quality time, not sure
Conall: thinks this is bullshit so won't tell me
Elias: physical touch or acts of service maybe, idk he's chill
Ester: ...physical touch, gifts
Evander: quality time? i would say words of affirmation but he would be way awkward about both giving and receiving them
Ewart: quality time, but why not all five
Ishmael: physical touch, receiving gifts
Jimmy: idk at this point words of affirmation but he's 11
Jay: acts of service, words of affirmation
Jemima: hahahaha constant words of affirmation please
Jude: acts of service. it sure is lucky that's not words of affirmation bc kieran and jude are just "i would do anything for you, just don't make me say it"
Kris: ?????
Leila: also ????
Lorcan: gifts! and touch
Marina: acts of service
Nelson: ??????
Phyri: quality time?
Rommy: acts of service
Sarah: touch, words of affirmation
Theo: merlin knows
Titus: words of affirmation, gifts?
Tyb: quality time, physical touch, but all the things rly he's needy xD