ADSL w no contract?

Hi guys, finally arrived in Hsinchu and managed to rent a place, now looking to hook up with some internet, however not sure if the wife and me will be relocating to Japan or maybe Myanmar in Jan/Feb so need to hook up the net on a short term basis. Which providers offer the best no-contract deals? (obviously I’m happy to pay more per month as a result).

Alternatively who has the easiest get out of the contract deal if we break it?