Fit Meet - Find patterns for any sports or activity.
KeywordTool.io - KeywordTool.io is the best FREE alternative to Google Keyword Planner and Ubersuggest. It uses Google's autocomplete feature to get over 750+ long-tail keywords for any given query.
Rovo - Rovo – Find Sports Buddies is a simple and easy-to-use social app that is designed to meet new strangers for sports.
Google Trends - Explore Google trending search topics with Google Trends.
FitMatch - FitMatch – Find Workout Buddies and Fitness Friends is a complete social communication app that connects you with people who share their fitness stuff.
Keywords Everywhere - Free browser add-on for keyword volume, CPC & competition