You'd be better off with another physician than an endrochronologist because they can treat your whole health and fitness, especially if you're looking to go on hrt being overweight and having diabetes. And there are a number of trans-experienced or -friendly phyisicans listed on the various support groups Websites.
Do you have a therapist? An experienced therapist should help you with the selection of a physician, and any physician and probably also an endochronologist, will require a letter from a therapist to start hrt. It's described in the standard of care for transpeople.