Baby shoes

Probably not what you want to hear, but baby shoes do just come off. My little boy has Velcro trainers from Clark's, Duckies and some branded ones like Nike etc and they all come off at some point (mainly him pulling at them 🤣) He is confidently walking all the time now but they naturally stand on their own feet/catch them on things/pull them off/trail them off while crawling etc so not necessarily a fitment issue, I don't think you're ever going to find a pair that will never come off!

Buy cheap pairs and buy the right size. They grow out of them in a month or so anyway so there is absolutely no point in buying nice ones in my opinion 🤣
We got some (that look like duckies) from amazon and fit perfectly fine other then when she decides to take them off
That said they recon you shouldn't put shoes on them until a few weeks after they are walking confidently.

We were recommended trainer style shoes that have two Velcro straps across the foot for more support. My little girl is just 13 months and has been walking for 3 weeks but we bought her shoes a little before her birthday. These have never fallen off. I have bought little Mary Jane/ dolly shoes from high street stores with just one Velcro strap or elastic over the foot and these ones do sometimes fall off.

We went to our local independent kids shoe shop and she was very knowledgable and really took her time when measuring/ checking the fit etc. This is the shop and the style we went for https://twinkletoes.shoes/products/tt-kids-summit-1-flexy-silver x