Started with the name my ex think suits me. Sounded too gender neutral and common. Tried bunch of names I can think of who were my transition goals. How did I tried? Used that name on food order and also imagined how it would feel like to get referred to that name.
Didn't like any of those either so I looked up list of woman's name. And chose something unique (at least in English speaking country) and has meaning that I feel very connected to.
Take your time