Just got one of these for my little one, disc brakes, suspension fork, low stand over. Can’t complain for the price.
https://www.gooutdoors.co.uk/16600971/polygon-relic-20-kids-bike-16600971
If I could recommend this video, you may find helpful, is a little long but is broken down well and gives a decent oversight into possibly every every available shoe. https://youtu.be/ov9lgjpbSP8
