Oh wow!
You may have noticed that most serious turkey hunters have a vest stuffed full of stuff, and typically a good percentage of that stuff is calls. I can tell you what I use, it's not as vast as what others do though, I'm sure.
Locator call: I've learned to hoot w/o a call, and a passable rendition I think,
as do many owls and gobblers over the years. But typically, I do not do a lot owling in the AM during the season. Owls call some mornings and some not. When they are hooting, I believe there are enough REAL owls working, that if a gobbler is gonna sound off, he will w/o my imitation. Plus, I don't want to strike a gobbler, and have somebody else move in on him, and when owls are busy in the AM, so to are gobbler hunters. I will owl in the evening a bit when I'm trying to roost a bird, if I am relatively certain that there are not any folks in the area that might hear a gobbler respond and compete with me in the morning.
I do most of my locator calling around mid morning, and early PM with a CROW call. Mines an old wooden OLT, which I think gives a better tone than the new plastic types. There is also a trick to blowing a crow call right as far as cadence and tone goes. If your crow calling does not illicit some answers or flybys from real crows on occasion, it's likely not right, and I believe a gobbler can tell that too. I know I can recognize a crappy plastic call blown by somebody that has not paid attention to how crows really sound. If I can tell, I believe a a tom can.
Friction calls: My favorite call is a handmade pot/slate call, a gift from a good friend. I would not take any money for it....it seems to sound just right. I carry an assortment of strikers in the shell loops of one pocket on my turkey vest. Different strikers yield different tones, and I can sound "different" w/o lugging another pot call around. The slate is a bit tempermental when wet, as only a few of my strikers will work then, and if the call is really soaked, it will not work well with any striker. I've toyed with the idea of toting a synthetic/glass/metal pot around to deal with wet weather, but have not done so. I have a factory Quaker Boy DD Adams double slate, and believe it sounds almost as good as my homemade number, but is bigger than my nifty gifted one, which fits in my shirt pocket.
I keep some box calls in the Bronco, but hunt them very little. I've got three lovely vintage Lynch boxes. Big and bulky, they will produce a lot of volume, and it sees use in high wind, and late in the season when my other calls may not be producing answers. But I find them hard to tote, fragile, and even more vulnerable to wet than my slates.
Mouth calls: I do not consider myself a good mouth caller, but have managed them since my teens and can produce passable clucks and yelps, and even some advanced calls. Their great advantage is that you can manage your shotgun and not be dorking with your call once a gobbler commits and gets close. If I can get a gobbler to answer and start in, I will switch to the mouth call (already in place) and not handle the slate again unless I am CERTAIN I can get away with it. (moving my hands/gun). To make my basic mouth calling easier, I stick to simple double reed calls and usually pick them up on sale after the season at wally world. My favorite mouth call is no longer made, and I get by with what I can find and sounds oK. I store my mouth calls in the fridge between seasons, and rinse and air dry them periodically during the season. They do not seem to last long and wear or dry out, and change sound. I carry half dozen or more of the things in nifty little plastic carriers , and usually tuck a lone one in the loops of my booney hat, where I will eventually loose it and need another.
Other: - I carry a gobble tube, but am very careful how and where I use it. Used primarily as a locator on private land, and from locales where I can see. I have used it to challenge another gobbler , or to create the illusion of a jake with hens.....but the gobble tube can draw stupid hunters as well.
-Another locator I use, but have limited success with, is a rabbit squealer, which I use to mimmick a pilleated woodpecker. It's an option, and another trick in the bag
-Sentimental: I carry a one-hand friction call from some pvt outfit
my Dad gave me, just because