off of vibes only,,, and doing the great houses/big players for ease of recognition
kms - stark
zyx - targaryen; he has the drama and the flair and the theatrics.

kjm - vale; arryn or targaryen
bbh - lannister or tyrell
kjd - stark
pcy - baratheon
dks - strong
kji - the reach; tyrell
osh - the reach; tyrell
i’m really not too well-versed with GOT apart from the main characters and the show-verse (and even then its been a while since i last watched it), so i’m afraid i’m not married to anything i’ve said.

if in dune verse also off of vibes only
kms - ordos
zyx - harkonnen or halleck
kjm - atreides or corrino
bbh - guild
kjd - atreides or corrino
pcy - atreides or fenring
dks - guild
kji - halleck
osh - fenring or atreides