The Golite is freestanding as it is, apart from the vestibule.
The Scarp needs the extra poles and is heavier with them , but has a lot more room,two doors/vestibules and has a better waterhead.
I would look at the TT Moment as well, (with the extra "freestanding" pole) . About 10oz lighter than the Xanadu.
Both of the TT with the extra poles have a freestanding vestibule .
Let me elaborate...
As our friend Roger Caffin will tell you, most freestanding tents are not.
A basic two cross pole design without a vestibule is (BD Lighthouse) , and so can be a 3 pole design with vestibule/s (like the Hilleberg Soulo/Allak or the Scarp)
All the other non dome designs need to have at least the vestibule pegged down for an optimum set up.
So you need minimum 1 peg (or tie out point attached to the platform) to make most work.
With two pegs/tie out points the Moment will stand up without the "freestanding" pole. (none required with)
BA tents need 8 to 10 pegs to keep the "tent" (inner) up as well as the fly away from the "tent". (to stand up and for ventilation)
In reality, particularly if there is any wind or rain, you need to peg down totally freestanding tents too. Some need less pegs than others...
BTW, since you mentioned three solo tents with a side entry and a vestibule, I took the liberty of assuming that that is what you like/want...