For what it is, or isn't worth, here is my opinion.
As far as calls you can buy either in stores, or via someplace such as AllPredatorCalls.com ----------based on my own experiences with them, over the last 20 years...these are the ones I recommend...............
...Any "production" call from RR Calls.
...Any "production" call from Carver Calls.
...The Crit'R Call PeeWee, Standard, Magnum, or Song Dog howler. (I cut my teeth on the Standard, and the Song Dog)
...The Primos CatNip calls {both of them}, the Lil Dog, the 3rd Degree, and the Female Whimper.
...Tony Tebbe's orange TT Extreme, the yellow TT Mini, the red TT Overdose, the TT LSB, the TT Green Nasty....and if he is still making them, any of his molded 1pc howlers.
...The Verminator Tweety, Thumper, Syco Tweety, Twisted Syco, and the Alienator. These are the ones of Rick's that I have used & know produce.
I do own the Long Range Tweety, the Nimrod, and the Viper, but have not yet taken them hunting. I do not yet have the Stryker.
I haven't ever used a Tally Ho, but I know they have been bragged about for a LONG time, so I don't doubt them.
I have used & liked the complete set of Dan Thompson calls (back when Dan was still alive), but I do not know if they are still being produced.
For "oddballs" that I know from experience, produce on coyotes when something is needed beyond bunnies & birds....I like (and so do some coyotes) the JavelinaHunter.com J13 Limited Javelina call from APC.
Although made from aluminum, I have always liked, and had success with the Zepps Cat Rattler, and the Prickly Pig javelin calls.
If you can find a collector willing to part with them.....the TT Cyanide Mini, Cyanide Max & Cyanide Sheila, as well as the TT Feline Frenzy.
I GUARANTEE that these are great calls that produce.
(And, yes, I have had all 4 calls since they were very 1st introduced. And, NOPE, I won't part with any of them!!! Hahahahaha)
That being said, almost all (myself EXCLUDED) of the call makers here on PM make excellent customs...for either what you would pay for a production call...or @ the worst, only slightly more.