5. Serena Williams & Alexis Ohanian

Tennis superstar Serena Williams connected with Reddit co-founder Alexis Ohanian on a chance trip to Rome in 2015. They married in 2017 and now share two daughters.
Alexis has been Serena’s biggest cheerleader through her record-breaking career. Their partnership shows how two different worlds—sports and tech—can create a powerful, supportive team.