What about a ball park? Sometimes those are fenced in (if only partially).

I take Fenway to several ball parks down the street. So far, he hasn't taken off (except 2 years ago when he saw a kitty on the other side of the fence & crawled under it and ran after it - I freaked).

Do you have hiking trails nearby? I take Fenway to several. Some I can't take him off his leash. But others, I can. When he starts to run off, I just call him back and he eventually comes back. When I get closer to the road or parking lot, I make sure his leash is on.

Good luck in finding a place you can take your dog.