Popular Houston rap artist Megan Thee Stallion isn’t only making waves with her music but also through her foundation. Megan, who has been an advocate for mental health and uplifting women, has a foundation that is doing just that. HOUSTON MARATHON: Can you still register for the Chevron Houston Marathon or Aramco Half-Marathon? The artist founded the Pete and Thomas Foundation in 2022,which is a nonprofit organization to honor her mother Holly…