If his toes are what's causing problems try some barefoot shoes. Look at happy little soles. We have a pair of begreater and they're fab.
We like Hobibear!
Start rite (H fit) and nike swoosh ones are the only shoes that fit my H wide footed boy.
Vivobarefoot for spring, camper for colder weather. 👍🏻
We get our little boys trainers from Clark’s or sports direct. Also for sandals we get the ones with straps across so you can adjust them or crocs xx