I’d say no to Tatooine, one because it’s visually similar to Jakku, and two because we actually see it like ten minutes later in the movie.
I’d pick somewhere populated. Naboo, Canto Bight or Kijimi come to mind.
If we want to go outside the movies, there’s Lothal (from Rebels), Onderon (from the EU and then Clone Wars), Corellia (from EU and then Solo), Jedha (from Rogue One) and Batuu (from the Galaxy’s Edge theme park)
Personally I’d probably go with Naboo, even if it means two prequel planets. If we look at the movie as a whole, the OT has three planets represented: Endor, Bespin and Tatooine.