Don't follow any of them.
Remember, don't think of this as "You're getting a free game!" but more like "Here's some more work for your to do to give me free advertising".
Personally, I'd build up interest in the game with sessions reports on LA and other relevant sites. Contact regular responders if they'd like a playtest PDF copy and join your FB page, with the eventual request for a review and/or their own session reports in exchange for a physical copy. LA session reports were how I finally picked up Five Leagues from the Borderlands, and now I'm posting pics on LA and their FB group, as well as supporting the game with Q&A and fan content. I think you even started the Post a Pic LA thread, so should post pics of your game and ask for reviews or whatnot.
Of course, you yourself should have a YT channel dedicated to your game, such as tutorials, a walkthrough of a session, etc. Include a link to a PDF quickstart, which you can host on DriveThruRPG. If your content synergizes with other products, you can even contact other creators to ask if you can promote *their* work in your media promotion.