Dara Hoffman-Fox, LPC is a therapist that specializes in transgender issues. Tons of quality information here. Plus, Dara a series of videos where they speak to the viewer who is trans, agender, nonbinary or questioning their gender identity, and provides some guidance as to how to think through the things you may be feeling/experiencing. They also have an e-newsletter that you can sign up for.
One specific resource that I came across on their site is their “My Coming Out Master Plan” with accompanying YouTube video. It’s a worksheet that helps you to think through and plan for how you would like to come out to family and friends. A version of that and many more resources like it are in Dara’s book, “You and Your Gender Identity: A Guide to Discovery.” I highly recommend that you pick-up a copy.