Looking for advice: Good locations for low-expense dude with $40k in savings considering 1 or 2 years of language school

Hi everyone, longtime lurker and sub searcher. I'm about to hit $40k in savings and am considering January intake (will hopefully be able to save more and aim for July instead but time will tell). I'm looking for city recommendations to narrow down my school search and start preparing for application season.

What I mean by low-expense is that I don't party, barely drink*, at most eat out once a month and my preferred hobbies are things like reading, video games, language learning, biking, walking around looking at critters or plant life, and volunteering if I can find a good place. My most expensive hobby would probably be hiking/biking if I can get back to it and maybe video games, though I tend to play older or indie games on PC so it's still on the cheap side now that I have a reliable enough PC.

No children, no pets, no student debt, fortunately. So, all in all, I think my financial needs are modest. I'd like to have money for my time there and money left over for returning and settling back in the US (about $8-10k, I guess?), in case a longer stay is not for me. Willing to work the allowed 28 hrs to supplement, but I don't want to need the job.

Am I asking for the moon? please advise 🙇‍♂️

*it's been over a year now 😂

ETA: currency is USD

by Gottagoplease