https://www.plannedparenthood.org/get-care/our-services/transgender-hormone-therapy
Planned Parenthood offers HRT services. Even if you travel far, they can prescribe to a pharmacy of your choice
https://getplume.co/
Option for those who prefer ordering online
https://folxhealth.com/
Another option for ordering online
https://hrt.coffee/
List of HRT suppliers and their payment information
https://otkph.com/
Crypto alternative for anime cuties. Read their homepage and shipping page information before ordering (may take a month to arrive)
Doctor/Specialist
Another option is to consult a doctor. They will likely refer you to a "specialist". A viable option depending on where you live but may take multiple appointments
https://diyhrt.wiki/
DIY resource page
https://www.reddit.com/r/TransDIY/wiki/index/
I don't reddit, but I've been told this is also a helpful resource for those interested in DIY