Selecting a forum software (Discourse, xenforo)

Hi all, I am making a forum for a community I'm part of. The community is subspecialty physicians. We are in different countries, including China, so Facebook groups which we used to use aren't the best.

The forum isn't meant to be highly technical or packed with features. Just something basic.

We also need to allow space on the forum for our existing sponsors to put advertisements and other things (like job oppourtunities, specififcally).

We are not a technical team, so low tech is better. Apologies if this is the wrong place to post

Thanks