13.5, 14.5, 15.5, etc. are too uncommon where if a store gets it chances are will just rot in their stockroom.
I feel for you guys. I’m a 12.5 and for some Jordans they are available overseas but not here in the US.
I know the feel. I buy size 14 jordans but I'm really 13.5 or actually 13 extra wide. Just put an insert in the shoe to take up space.