Some people like 'Half-Clips' which are toe-clips without the 'prong section that holds a toe-strap. There's just the front 'basket' part of the toe-clip and it's purpose is to stop the foot from slipping off the pedal. It also lets you position the foot in the same spot each time you put your foot on the pedal.
https://www.amazon.com/Zefal-Cristop.../dp/B0048HWQKS
VeloSolo - MKS Half Toe Clips
Some pedals have very flat platforms that give lots of suppor even if you pedal barefoot or wear sneakers.
Cheers