Husband is starting a fertility protocol while on TRT

My husband (31M) and I have been trying for a baby for a few months but haven’t been able to conceive. He’s on TRT, 50mg twice a week. He recently had a semen analysis which showed zero sperm, so now he is moving towards a fertility protocol.

We’re considering starting off with 5000iu of hcg, split into two doses of 2500 every week. Should he also add clomid?

Clinical evidence does suggest that hcg+clomid are effective but a lot of people say they do the opposite things. Does he also need to add FSH?