I would go for the reinforced tyres (XL).
The SUV tyres might be more comfortable, but you might face some faster outer tyre wear.
Maybe I am not the right person to answer, as I have the C tyres (van) which have very hard shoulders.
The main features are: speed and weight. All the rest is up to your personal preference. And only trial and error will show you what you need, instead of prefer.
The speed index must be at least the maximum speed your van is rated at. Mine is rated at 170km/h, so in theory I could go with speed rate "R". I now have speed rate "T" = 190km/h.
And I have 104/106 load rated tyres = 900kg for single wheel, 950 for dual wheels.
As my maximum axle weight is 1600kg at the rear (I have a towbar, so the maximum weight is upped with 25kg, making the 1575kg up to 1600kg), the maximum load on 1 tyre is 800kg. I could go as low as load index 100.
Best is to go for at least 235/55 R17 103H. XL is not obligatory, but I would prefer those.