Hi, Welcome aboard. You can find online races in 3 areas, Within rF2 there is the Competition System, Which is an automated matching service. Also there are some free server's in the multiplayer section. Finally there is a new service by a separate organization, Low Fuel Motorsports. The forums here have a list of racing series you may want to look at: https://forum.studio-397.com/index.php?forums/online-racing-discussion.129/ I should have also included Race Department which has it's own racing but also supports rF2 events. Look under ESPORTS.
Welcome As I am also continously looking for a community / race league ... etc. I like to mention justrace.net which has rF2 support (as kind of a portal).
Welcome to rF2 Mike. If you are looking for a community league, check https://virtualracingchampionship.com/. New season starting early January, racing GTEs