Help! Newbie campers need help picking out a TT and TW

Your weak point is the 3.08 axle and the payload rating of the suburban. You're going to need something in the 3/4 ton range to have enough payload for 6 passengers and the tongue weight of a trailer large enough for all of you.

There are plenty of trailers out there that have what you're looking for, but they will all likely exceed the ratings of your suburban. Don't know if there are any 3/4 ton SUVs still being made. You may have to go for an older model like a 2500 Suburban or a Ford Excursion.