If you want to supply medicinal cannabis buds to a club, its pretty straight forward.
1. grow the plants the clubs want
all you have to do is ask them "what do your patient's like," or "what do you like to have in stock?". understand most clubs expect a minimum 1/4qp (113.5 grams kids, NOT 112... there are 28.4 gs in an OZ) available.
2. grow your plants better than everybody else is growing theirs. THIS IS THE HARD PART.. "growing your plants" means not only growing, but also flushing, manicuring, & drying them properly. good luck
3. pound the pavement and start working. discreetly bring your product, properly packaged (turkey bags are nice), to the shops and ask to speak with the buyer. if your kung fu is true all you need to do is open the bag/s and the buds will do the rest.
clubs are going to pay minimum dollar for your medicine. the dispensary here will buy a pound for a max of 3k. my knowledge of dispensaries is limited to the one i go to weekly, but all i did was get to know the owners well and then ask. typically they will only buy "medical" strains. so even if your grapefruit skunk is way stronger than their misty, they wont buy your gfs because it hasnt been proven to treat ailments.
I get $300 per ounce (yep, $4800 per LB) of for my Bubba Kush & Sour Dubble cuts... IN ADVANCE in few times due to demand from LA clubs. My phone rings off the hook when the buyers know I am clipping the buds off of the branches (I call them when i first hang the buds to let them know "5-7 days" and get their mouths salivating for my product... and get their money right, too).
i don't know where you are going or what you are growing, but either your buds suck, or you are selling yourself very short dude. you gotta fix that.