I'd actually ditch the toe clips and straps in favor of a big, grippy BMX/MTB flat pedal, especially if you're starting out or getting back into the sport. Clip&strap pedals need a shoe with a smooth, flat sole and no bulky lacing, or they'll snag on the shoe treads or stitching, unless you've got the straps so loose that you may as well be on a flat pedal anyhow. Plus you don't have to deal with all the faffing about to flip the pedal right side up so you can put your foot in while you're trying to get away from a stop.
For a flat pedal, you can use pretty much anything; flat-soled 'skate' shoes are popular, I like 'light-hiker/trail running shoes, since they're a little sturdier than typical sneakers, but still comfortable for extended off-bike use.