HCG monotherapy is usually not effective to sustain good sperm quantity and quality.
TRT + HCG works in some (not all men) using 500 IU HCG every other day plus T injections or gels.
For difficult cases, HCG + FSH works great. Empower sells the cheapest FSH in the country
https://www.empowerpharmacy.com/drugs/fsh-injection.html
[ATTACH]5083[/ATTACH]
Clomid works fine for many younger men.