Renting apartment on WH visa?

Hello

I might go to Japan next year on a working holiday visa and I am thinking about living and mainly rent costs.

Fukuoka seems to be a decent sized city and fairly affordable but even though airbnb has some pretty good apartment options, I wouldn’t say there are plenty.

I’ve read online about some other ways to find apartments, like gaijinpot. However, I’m not sure if I can find an ”official” apartment since I probably wont be working regularly or a lot. I’m sure the landlords usually check your income and similar things. I will have study tuition which is quite a good income but not sure how viable it would be to claim as a main income.

Is Airbnb my best option?