if i had to pick anyone, probably spinner.

they know the strife of being from a backwater town, and being a couple of country folk. while mac is american (and their town is actually a college town despite being small in their eyes), they can relate to how spinner grew up. both were ostracized albeit for different yet similar reasons. mac was an alt kid growing up, and living in a conservative, rather religious town in the southern united states is never easy. they were called cruel names, including "mutant" despite not looking like a traditional heteromorph. mac, for most of their twenties, was also a recluse until they managed to break free and go to japan. and there is a common interest in video games but mac had very obscure ones that no one gravitated towards.

before her death, mange was also growing close to mac too. trans siblings and all.