One more for Shimano spd pedals. I've been using a pair of pd-m324 pedals for several years now with no issues. I like the "bear trap" shape when riding with normal shoes. My wife has some pd-a530 pedals that she likes for the same reason. I think the a530 has been discontinued, but you can still find them on Ebay, and I'm sure the model that replaced it is equally good.
There are a lot of good entry-level mtb/gravel shoes out there at decent prices. Go for comfort and fit over fancy features.