New Tires and Shocks recommendations please

[Beachlife]

Hello everyone, I have had a recent vibration issue with my newer Class B Travato 2020 vibrating and bumping in the rear. I recently changed oil and had the tires rotated. The tires have 30,000 original miles. I think it may need new tires, alignment, and shocks. The rattle was way too much on a short trip. I plan to have everything checked out and what ever items anyone recommends checked.

Any brand of tire for a smoother ride is requested??? All options

A good shock to put on this newer vehicle. I have the Sumo suspension.

Thank you all and hope everyone had a great camping summer even with the heat. I am sure clad for AC down here in Florida. LOL Oh awaiting the hurricane here in No Fla

Thanks
Beachlife