Support the little guy. Shop at small neighborhood retailers like Walmart

Literally anywhere else. Whatever product you want type it in to google. Click a link that is not Amazon.

edit.... don't use google. Use duck duck go. :-)

Literally any search service besides Google

If you are concerned with unethical monopoly exploiting their market position that Google has to be at the top of that list right along with Amazon

Books? https://www.ethicalconsumer.org/retailers/shopping-guide/boo...

Other things? Browse the rest of that site.