What can I tow with my Suburban

Thanks again for all the feedback; helped me feel much more solid about our decision to ultimately walk away from the 4200lb TT. Have looked at a couple hybrids and will likely go that route; some of the Jaycos look promising. Not sure if I can find one for that $9k price tag (like the 4200 pounder was), but I suppose it may be worth not having to worry about stressing the transmission in a vehicle we hope to keep for a while longer. Thanks again!