Be advised, that most of the javelina hunts are by lottery for your tags, so make sure you go and put in for the draw on the AZGFD website. Javelina are spread out around the state in many of the low and mid desert areas. There are plenty of them in the Tucson area, up into Marana, over into Florence. There are also good concentrations in the Black Canyon City area. Pretty much anywhere that you find prickly pear cactus and farm field concentrations you will find javelina.
As for coyotes, they are everywhere in the state. Do some satellite scouting and find water holes, farm fields and if you can, cows. If you have those 3 things within about 2 miles of each other, you will find an abundance of coyotes. Coyotes and javelina will also be found together, so chances are if you are javelina hunting you will run into coyotes.