By connecting your Tracking Pixels, you can setup Meta Ads that retarget fans that have visited your Minisite or Moment pages and create Lookalike Audiences.
Other relevant pages:
Mini-Site - use as a link-in-bio and retarget folks with Ads.
Moments - collect RSVPs for a presale, giveaway, etc. and create Lookalike Audiences on Meta.
Meta Ads - create Meta Ad Automations to help drive more conversions and increase ROAS.