I like to anchor and fish 2 poles in the rod holders while I walk a 3rd bait downstream. That way you are doing both. When I find a slack water hole, where your bait doesn’t move anymore, I put the rod in the holder. Eighty percent of the time there will be a fish in that hole hiding out of the current.
After a short spell in the rod holder I will reel in and walk it back again. I like to do that three times before moving. And, you don’t need $2,000 trolling motor to walk baits while anchored!