The type of plug depends on the type of outlet that is installed on your TT. It appears that there are at least a few different types.
I have a 2019 Cougar that is pre-wired for a Furrion plug. Based on other posting on these forums, I was able to find a plug that I think is going to work on my Furrion setup (although I haven't been able to try it yet).
Of course, if you buy a Furrion Panel/Controller, it will already come with the Furrion Compatable plug...but that brand is a bit more expensive.