The API I'm using searches all libraries that use Libby/overdrive (https://www.overdrive.com/) to distribute eBooks. So if your library isn't on there then they probably don't use Libby and the way to get them on this site would be to have your library start using it. Lmk if they are on Libby and not showing up bc that would be an issue and I can fix it :)

Another option is to get a library card at a library that does use Libby -- there are some that offer cards to non-residents solely so you can check out library books but idk exactly which ones