Looking for HCG since on TRT

I was looking as asking doctor to prescribe HCG while I am on TRT. Yes to help try keep boys from shrinking to much. That would be only reason. Wondering first would it be helpful? Secondly were you get it. My local Walgreen s has it for about $360. That just looks pretty expensive. Any other options that are good. Where and what are you paying?

Thanks in advance