Not sure what you want to know. Your ID has testosterone replacement therapy (TRT) in it, so I'm guessing you are interested in TRT. There is a ton of info here, in no particular order, but it's all here. If there is a specific question on something, no doubt someone here can point you in the right direction.
The current sponsor is IMT (Increase My T). They work with a bunch of us, e.g., they handle my TRT. You can always give them a call. They are very knowledgeable on this topic and all the treatment options that are available.
I was in the same spot as you less than a year ago. I had no idea of how to handle TRT. Lucky for me, I came here and did my reading. So you are doing the right thing. Just let us know what you want to know, or contact IMT. Either way, all your basic questions can be easily answered.