If you like the feel of the TP (not my cup of tea) and would like a better quality, less hot, longer lifespan, better warranty then look at the Tempflow mattress. Tempflow has been around for years, and has more than captured the essence of TP, but in many ways exceeded it with its patented air flow transfer system. Plus, it has something like a 40 year warranty.
In your weight categories, you do have a host of options. Although I am a big fan of Brooklyn Bedding and the 3z brands as I own 3 of them currently, you really need a mattress that provides superior support. In the helix series that would be the Helix Plus Series, Nolah the Evo Comfort +, Leesa Plus Hybrid and the Brooklyn Bedding Plank Luxe or Titan series.
You may also want to consider the @BackScience 2 with enhanced lumbar support.
Also, while latex has a different feel than you are accustomed to, you would be surprised at the comfort and durability you might get from a firm density latex mattress from any of the excellent Trusted Members here at TMU.
Plus might take a peek at Engineered Sleep and DLX as both offer memory foam and latex options.
While you are contemplating all of these options, I can not stress enough some of the mistakes mattress consumers make, when buying their foundations, adjustable bases and pillows. Not that the two of you are super plus sized, but a robust foundation, with slats less than 3" apart and appropriate center supports, with slats that will remain rigid enough not to flex and cause sagging to your mattress. Pillows that are mated to the mattress and sleeper profile so you maintain proper posture and alignment. Sheets that breath, so you dont sleep hot, preferably cotton or natural fibers. All key elements and components that are often over looked or not budgeted properly in the cost of your new bedding set-up.
All the best on your journey to a more supportive, comfortable bedding system.
Maverick