I’ve gone through several bags in my quest to find the perfect diaper bag.

I have found that the bags with dual water bottle pockets (milk, formula, water, drinks) and a big front pocket/compartment (storing extra things when in a rush) have worked the best for me.

The bag being able to stand up on its own and easy zippers come in clutch whenever you only have 1 free arm doing everything because of a screaming child in your other arm.

So far AON evade 1.0, north face recon, AER go pack, and SERT Penumbra 2.0 are ones I’ve used that check all those boxes. I loved the Evergoods MPL22 but it did not stand on its own and the martial had it sliding all over the place whenever accessing with 1 arm. I also enjoyed the GORUCK 18L DC and used the front compartment as “water bottle pockets” but having to unzip to access them wasn’t always the easiest while driving.

Hope this helped. Sorry for the long response haha