absolutely!! this list is going to be a little biased, because of how i made friends with every other zach smith fan.

e.g. this excellent zach/anthony/neville series was written for me: https://archiveofourown.org/series/1285625

one of my faves, also written by a friend, is this zach/pansy fic: https://archiveofourown.org/works/4413971

and this justin/zach series (also feat. other characters) by the same author: https://archiveofourown.org/series/225959

here's one where he's a great background character: https://archiveofourown.org/works/142827

and here's a self-rec! a genfic where he features heavily: https://archiveofourown.org/works/8154856

(i also wrote a longfic all about him, but i wrote it years ago and it really needs an edit, haha.)