Need advice on new sensory friendly office shoes - sh.itjust.works

I just started interning and it’s my first office job (Yay!) but most of the clothes I feel comfortable wearing are not really office attire. Especially shoes. I have no “appropriate” shoes because shoes have always been a particular source of sensory issues so I wear the same black pair of mesh trainers. I have to commute in a big city so I end up walking a decent amount, and shoes that are tight and/or heavy really mess with my focus. Do you guys have any advice on how to find comfortable shoes that are at least a bit more office appropriate? Maybe solid clean white sneakers? For reference I’m female.