What kind of thermo electric cooler works best?

I don’t know about best.
I’m confident I didn’t waste money on my coolatron. It’s the narrow one. I like the ability to place it because of its size. Might get a second one day.

 

Coleman, hands down.

The main fan is a simple 94mm computer fan, so it is easy to replace. (Not so easy with the internal fan, but it rarely fails.) I have also used an 80mm fan and a 120mm CPU fan when I could not find the right one.
You can stand on it with no damage.
It keeps things cool to cold or freezing, depending on the ambient temps.

I have used a few, but the Coleman has always been the most reliable and easy to service of all of them.

 

I could swear I posted a pic of mine on this thread. Try again.

 

I like to cook my own meals at night. No fast food at dinner time. So I need to keep some meat and veggies in the cooler. That takes a decent sized cooler, and one that keeps things cold enough.

 

I've had the Coleman for 2 years now. Will still freeze over if I don't unplug it in time. I keep it on passenger under vent with ac on