Talking about living in other places: What is a good way to find an apartment for a few weeks? Just use AirBnB and see if the apartments offer a discount for

Talking about living in other places: What is a good way to find an apartment for a few weeks? Just use AirBnB and see if the apartments offer a discount for a longer stay? Or are there better ways? I play with the idea to live in Lisbon and/or somewhere in Asia a few weeks during the coming months.