We have a Coyote 23' hybrid with 3 beds ,plus the table and coach both can be used. We have 3 kids of our own and usually a few extra. With the beds all outside it allows for more space in the trailer. Ours weighs 4100 lbs ,tow with a GMC Envoy.Your Suburban should tow that kinda weight easily.
A hybrid is a good choice for someone with your concerns. Easy to tow, plenty of beds and lots of room inside for rainy days.We have camping friends with 30' trailers with less living space than ours.
We've had ours since 2009 and still love it! Good Luck !