Timely thread, I had a leak on my rear tire last week and it unseated form the rim. I tried the 3” ratchet strap method with no luck. Came back to it with a can of starting fluid and I could not get the fluid to “ignite”, I assume because there wasn’t enough of a gap to let the spark inside the rim. I left it out in the sun for a while and lubed the rim. Tried the ratchet strap again, tightened the SOB as tight as I could get it. Then proceeded to hit the tire with a sledge as I was filling it with air. After a few tanks of air she finally popped into place. Probably should have let a little air out before I attempted to undo the strap. When it let go, it really let go!
Be safe, whatever method you end up going with.