Collective grows can be a liability. You're not being clear what you're looking for.
Several vets groups around always looking for compassionate growers..
Thc4ptsd
Weed for warriors
Come to mind
Doesn't sound like connecting w other caregivers is exactly what you need, but they may help.. I'd interview all the dispos in your area (in person) and see which ones consider outside meds. They won't tell u anything over the phone. You can also advertise on Craigslist or anywhere you may be able to find any mmj cardholders who currently don't grow their own. Sounds like you must to be very local to where you live.