What is the best way to get books/things to read for free/cheap?

So im usally am stuck at home but ive never felt like rading but i also want to learn somethign new. i was thinking i should read a how to book or, (blank) for dummies but i do online school, i cant drive because im afraid and i tend to freak out when going somewhere becasue i have autism.

is there a librairy app or something i should know of, also feel free to suggest a book if you would like... or ask for more detailes?