While there certainly is yuri manga here in America, I haven't seen it anywhere. My local library has a decently sized manga collection, but I haven't seen any yuri there... where art thou, yuri manga! Granted, even if I could find it, I wouldn't have the money to buy it, but it's still nice knowing it's nearby.
You'll probs have a better chance with bookstores rather than public libraries.
That said, bookstores dont stock up in everything, usually what sells, and the one we have downtown (a big, chain store one) has a least a copy or two of Strawberry Panic, both volumes of GFriends, the Kisses and Sighs anthology, Gakuen Polizi, Akuma no Riddle, Citrus (which gets like 15 copies when a volume is first released), and idr what else but there's like 7 copies of NTR Trap rn
I think that whatever the US gets, Canada gets too in terms of distribution
Tho its harder in french, the french chain bookstores do stock up in french manga, but they dont seem to care for french yuri much, they dont stock it at all, in stores or online. The option to order them is available, but they legit dont stock them, itll be directly shipped from the publisher/France and take like 8 weeks