The Ukrainian Super League seems pretty borderline. Here's a 2015 article about Cameron Rundles:
Cameron Rundles isn’t ready to give up on professional basketball, but playing on another continent has tested his devotion to the game.
the-cauldron.com
Sounds like they make about $50K. Not a lot.
But, a guy like Mo Creek put himself in that position. If that's his best basketball hope at his age it would seem like maybe doing something else might have been in order. If you're so intent on playing a kids game well into adulthood that you need to play in such a place, well that's sort of on you. I won't fault anyone for sending money to the guy, but no way I would do that.
But, I'm a bit of an asshole.