Parler is a social network that was championed by Dan Bongino and rose in popularity before being deplatformed by big tech. It is back online now and running well.
Minds is a blockchain-based social network that is actually very good. One stand out feature of this platform is the use of crypto currencies for boosting content or subscribing to creators.
Gab is a more full-featured alternative social media platform. It has features like groups that you might expect from using other platforms.