There's a number of podcasts (Classic Tales for instance) where they read old books. And you can do a search and find a bunch as well (https://librivox.org/ htt

There's a number of podcasts (Classic Tales for instance) where they read old books. And you can do a search and find a bunch as well (https://librivox.org/ https://librivox.org/, http://www.openculture.com/freeaudiobooks http://www.openculture.com/freeaudiobooks) But I've found one of the best sources is YouTube. Tons of readings of out of copyright books and you can usually pick a narrator you like.