My local library does carry a shit-ton of series. Back during my conscription the garrison library stocked several dozen series too, that I devoured in the boredom of hurrying up and waiting.

You can get digital releases, too, I’ve read a lot of manga on an e-reader. First on a Kobo, now on a Android based Likebook device which I can use any app on for accessing manga that I like.

Kindle has tons, and for series that only exist in English thanks to fan translations, reading from mangadex using tachiyomi is fantastic.