Had my dog freak out about me getting bored and putting on my full faced helmet that he’d never seen me in as it was for racing autocross/formula SAE. Made for some fun chasing around as he was particularly worried about the helmet itself even after it was off. But, otherwise…
https://www.versobooks.com/
Explicitly lefty publisher, but the ebooks are DRM free and they include them for free alongside any physical purchases. (They do tag the ebooks with your name and email though.)