You can get some coworking space for about $100 a month, at least in my city, for 7-8 days a month visitation
Big franchises like panera bread, McDonalds in nicer neighborhoods, starbucks come to mind. Bookstores, coffee shops, local library, etc. Some local independent restaurants are okay if you get to know the owner and if its not as busy, and you get food there. Drink shops / bar areas that have board games are good too. If you have friends that have coworking spaces / their company workspace, its not a conflict of interest on your end. Some gyms have some desks you can work at as well
If you have a local university or college there's plenty of empty classrooms sometimes openly available and never opened. If you need a legitimate reason to go on campus (and aren't an alumni), you can buy a gym membership there
If you don't need public wifi just use your internet, any place with seating is okay.
Hotel lounges, but you won't get internet access though, but if your tethering it won't matter. Depends how much work you are doing. Bigger chains are better, they don't care nearly as much. So long as you don't look like a homeless bum your good here.
I would also include golf and country clubs along with hotels, since they are resorts too.
Additional locations are makerspaces, but that might be only at certain times of the day. Checkout your local science center or any local museums, do a wifi scouting and seating availability.