603 any closed reed distress call off the shelf will call in a coyote if you do all the others things that you need to do.
I don't know what stores you have around but a Flextone dying rabbit call that sells for $13 called in my first.
A closed reed is a lot easier to learn on. Get a call you like and watch a bunch of coyote hunting videos to hear how they play their call amd then practice a lot!
Using a hand call you need to call for about a minute and then sit stiller then still for about 3-5 minutes just watching. You want to have the coyote hunting the source of the sound when it arrives. This is when a decoy is worth its weight in gold!!
Good luck and keep us posted!