Do you prefer your water bottle to be made of metal, plastic, glass, or something else? Straw or no straw? How big would you want it? Should the bottle taper down in the bottom, or do you think the sided should stay vertical? Are any of you one of the few people who would like that weird rectangular bottle? Or maybe one of those squishy fold up ones for travel? No handle, flip up handle, mug style handle, or little loop?
Note that I am not affiliated with any water bottle company
Oh, so it looks like Contigo has a patent on the technology, which is probably why you can’t find an exact replacement with other companies.
Weirdly enough, Coleman has one with it. I have one of these, but it’s only 24oz. I also have a number of Contigos, both plastic and vacuum insulated. But none of the larger ones fit in a cup holder.
https://www.coleman.com/coolers-drinkware/drinkware/freeflow-autoseal-24-oz-stainless-steel-water-bottle/SAP_2015761.html
Looks like Contigo and Coleman are owned by the same company (Newell Brands)