This is the largest and most DETAILED list I've ever seen on this topic.
http://www.cancelthiscompany.com/Good-Companies.html
http://www.cancelthiscompany.com
Sample listing:
Menards Hardware - Historically heavy Republican donors, but starting to waiver. Still carries MyPillow! Eau Claire, Wisconsin-based.
Thanks for the heads-up. I'm sure there are plenty of issues like that in the two lists; with the huge number of companies listed, things can change quickly and the person maintaining the site has only so many hours in the day.
Also, in my experience some individual locations are run by people who are lax with the rules and others are more authoritarian than the home office requires, so there's that. I shop often at a Fred Meyers (like Safeway but with a wider selection of non-food items) that plays "We requires masks . . ." every fifteen minutes or so over the loudspeakers but have NEVER been bothered about being maskless.