https://www.gamespot.com/articles/heres-the-free-pokemon-and-items-available-for-pok/1100-6453941/

The next pair of Pokemon games, Pokemon Ultra Sun and Ultra Moon, are quickly approaching their November 17 release date, and ahead of their launch, Nintendo has been giving away a ton of free items and Pokemon for the previous Sun and Moon versions. Many of the giveaways have already ended, but there are still plenty of rare freebies for Sun and Moon players to get their hands on.

We've rounded up all of the distributions that are currently running for Pokemon Sun and Moon, as well as a few that will be available for Ultra Sun and Ultra Moon when those versions launch. We'll be updating this list as more giveaways are announced, so check back often to see what free items and Pokemon you can get.