Car Cup Holder Expander, Cup Holder Extender Adapter with Expandable Arm and Adjustable Base, Compatible with Yeti Ramblers 14-64oz, Hydro Flasks 18-64oz Most Coffee Mugs Bottles & Cups

Either of the Owalas. I like #2 because it fits in the standard cup holders but if cup holders are an issue, I use a great adjustable one that fits the larger bottles that I got off Amazon. https://www.amazon.com/dp/B0B592RKP9

https://a.co/d/06XHT4i0 4.5 out of 5 stars(2,545)Car Cup Holder Expander, Cup Holder Extender Adapter with Expandable Arm and Adjustable Base, Compatible with Yeti Ramblers 14-64oz, Hydro Flasks 18-64oz Most Coffee Mugs Bottles & Cups

I use a cup holder expanded. https://a.co/d/0fqYvo2x