N2generate ES is the best for fertility you will find
hcg was never intended to be used for men for fertility. if any doctor puts you on that they should be sued for malpractice because it will REDUCE fertility in the intermediate and long term since it suppresses your pituitary glands
you definitely want to go with m1 mk... hcg has many other side effects and using it long term can create other issues... i have never been a fan of hcg whatsoever