Tiguans in general have a good reputation as tow cars. The model you are looking at apparently has a "weight" of 1700kg. Parkers do not specify if this is kerbweight or not.
It also has a maximum towed weight allowance of 2000kg. However the conventional advice for towing a caravan is that the MTPLM should not exceed 100% of the cars weight, but novices should not initially tow more than 85% of cars kerb weight. This suggests a caravan with an MTPLM of only 1445kg rising to 1700kg as experience is gained.
This advice is only advice and varying by a few percent is not likely to cause a problem.
Do read up about sensible loading to control both noseload, and to limit end loading.
(added by edit) I should also point out that a good match will only be good provided the mechanical condition of both the tow car and the trailer have been maintained, and driven sensibly. to much speed is the biggest single factor that contributes to instability.