Best wishes with your first big snake. Do you keep any snakes currently? I don't keep retics, I opted for an olive python and a scrub python instead, but I love the Tiger, Phantom, and Golden Child morphs. I've seen some gorgeous retics on Morph Market. I also know that Bob Clark produces some stellar animals. I'm sure some seasoned retic keepers will chime in with more recommendations shortly.
https://www.bobclark.com/available/reticulated_pythons/
https://www.morphmarket.com/us/c/rep...-pythons/index