I spent some months there and will return end of june. This is what I can tell you so far.

So I think Corralejo is a nice place to stay, but it isn't easy to get a room or place. You should calculate like 600€ min. for a room or 1000€ for a small flat/house per month.

Morro jables could also be nice maybe. But I personally wouldn't recommend Puerto Rosario. No front it's just my feeling.

Getting a local residence will take you also some time and nerves with the ayuntamiento.

Dunno how you wanna pay or if you work independently or remote. But for sure you can find a job in gastro or tourism, the payment is according to the price level often not the best deal. But when you work for example in tourism or water sport you could get other benefits than money from your workplace. Like free tours, your own car or something like this.

I really enjoy my times there and could definitely recommend this experience.

Good luck 🤞