Put in the time and scout. I've hunted turkeys for over 18 years and my most successful way is to find the roost, come back the next morning and set up with a hen and Jake decoy within 100 yards VISIBLE to the roost. 90% of the time the Toms will be the first ones down to display themselves. It's a matter of seconds of them flying/running to your decoys. No need for a blind, keep movement to a minimum and find cover where your silhouette isn't exposed. Don't be afraid to get too close.
Haven't touched a call in years..

I rarely hunt turkeys for myself anymore. I usually take a family member or a friend if they want to shoot one. The excitement is gone. spot and stock, calling, taking them with a bow. The turkey population over here is insane and zero challenge anymore if that makes sense. A lot of farmers over here HATE them, getting into their winter hay stacks and imagine 300-400 turkeys in a corner of a winter wheat field, they don't nip off the tips like deer, they pull the whole sprout.