I am aware that some in-demand Porsches are difficult to purchase; one must be familiar with a dealer, have been a customer in the past, etc.
Does the Taycan or Cross Turismo fit this description? Or is the process for purchasing one reasonable?
It will depend a lot on country, dealer (tied or not), plus the current supply chain situation.
At the moment, Taycan demand significantly surpasses supply. Hence, most dealers won't have any slots available and even for the slots granted the delivery situation is unclear.
Geopolitics is troubling, UE and increasingly Taiwan, as you know.
Besides that, the purchasing process is pretty straight forward I'd say.
I ordered at a new dealer based on availability of slots and delivery took 3 months. All good.
It is a number game. There are 189 dealers in the USA. If you connect with enough of them and you're ready to buy and not extremely particular about specific options, you'll find a Taycan at MSRP. You'll quickly find out which dealership is there to help you buy a car; and which one is there to rob you.