From personal experience BMW or Moto Guzzi clubs are a safe bet. Substance use, if any, is only after the bike is parked for the night. As for membership for non-brand owning riders the rules differ for each club. Plug Follows - My club, the BMW Motorcycle Owners of Vermont is the most ecumenical club of any I have come across. The BMWMOV is brand centered but anyone can join no matter the bike they ride or even if they own a bike and enjoy the same voting rights as owners.