Pronouns are tough for me.
Like, "He" is honestly Fine. I'm okay with the neutral He. Maybe just go soft on the H. Accents around here go that way.
She... Well, if you're calling me She, you're probably talking to Keri.
They... Well, They for me is plural, even when, uh, it's supposed to be singular.
Shi/Hir would fit best but it's not in super common usage outside furry.
Zie works too, but you might as well just make a verbal martini treating the H in He as Vermouth.