SERMs are part of an HRT. It wouldn't be considered TRT, though. SERMs work by increasing the LH output, hopefully increasing T using the body's own mechanisms. This still causes a rise in E2 so a proper AI (aromatase inhibitor - arimidex anastrozole) will still be needed. Selective Estrogen Receptor Modulators only block estrogen to specific tissues. They are not an "estrogen blocker" as a whole. If you do decide to go this route you will need to continue the use of an AI after stopping the SERM to prevent estrogen rebound.
Nolvadex is primarily recommended here due to the negative side effects some experience with Clomid. 20mg/day of tamoxifen citrate generally produces good results IF one is secondary hypogonadism. I can only assume you are due to age because I still don't know your LH and FSH numbers. If they are near the top end of the range, this would be considered primary hypogonadism and TRT is pretty much your only option.
Doctors get "T tunnel vision" when someone's T is low and supplement with T without ever figuring out what was wrong in the first place. Here, we try to pursue the root cause. If you can get your body working properly without having to go on life-long TRT, that's your best bet.
On a side note, you could also try AI-only treatment. You could take .5mg of anastrozole/week in divided doses. This has been shown to raise T levels while lowering estradiol, therefore reversing your estrogen dominance. However, many have not reported an improvement in symptoms despite the reversal.
Just some options for you. Let us know how it goes.
EDIT: You need more labs!