Best clipless pedals for distance or touring?

any decent road shoe, pedal and a set of cafe covers. Shimano 105/ultegra/DA have a great solid platform paired with decent (carbon) soled shoes. I'm 90+kg and find my setup fine for 8hour rides.

Great for 8hour rides but shit for 8min walks, which could happen when your touring.

Touring involves more off the bike. MTB SPDs. Cheap, effective. There's no way I'd use road shoes for touring.

This.

M520s are fine, and cheap.