You will have to wait until NFL Shop offers the Custom Jersey feature for the Bucs on their site. I’ve been waiting for Mike Evans or Devin White Jerseys to become available. So far no custom feature and only limited player Jerseys (Brady, Gronk, Godwin, JPP) available in Men’s sizes.
Seems like these vendors are missing out on a shitload of sales. My guess is their suppliers are affected by the pandemic. As the others said, they will eventually begin to offer other players’ jerseys, and custom jerseys.