I don't go in person to the library super often any more, but when I did I got in the habit of grabbing one book semi at random off the shelf. I say "semi at random" because it's probably from a section I enjoy (likely fantasy) and I'll quickly vet it as something I would at least possibly enjoy. But otherwise, just grab a random thing.
Pair that with a willingness to stop reading a book if you're not really into it, and sometimes you find gold where you'd normally not have thought to go looking. (A willingness to not be stuck with a book can go a long way toward making it easier to start one, in my experience.)
For anyone who's not aware, letters to your MP (and certain other members of the federal government) are postage free, so you don't need a stamp.
https://www.canadapost-postescanada.ca/cpc/en/support/articles/government-mail-free-of-postage/overview.page
Note this doesn't apply to provincial positions, so you'd have to stamp a letter to an MLA.