Airbnb and VRBO tends to be the biggest two . I’d start by making a list of furniture you’ll need, networking with a good local photographer, finding a cleaner/handyman, and starting to research some Airbnb hosting software that is out there. Also make sure to check with your local city regarding STR regulation and if you need permits.
https://www.biggerpockets.com/forums/12/topics/913490-first-short-term-rental

