I just heard about the free shipping anti-Prime promo that Bookshop.org is running until Friday this week. I'm a fan. At this point, only one of my books is available there. I'll work on that. In the meantime, here's my novel Wild Times from an organisation I like running a promo of which I approve.
https://bookshop.org/p/books/wild-times-david-bridger/0228e1b45f10b6ae?ean=9781786454881&next=t