Clicking not turning over battery good

Bad battery connection or loose wire.Clicking noise is a relay not getting enough or intermitant power from the battery

Loose battery cable or bad starter or locked up engine....

my guess is locked up starter remove and have tested auto zone does it for free

You may be faced with an open starter motor .Key in start position will energize starter solenoid which will make a audible engagement sound each time its applied. Do check all electrical connections at battery and starter which should be tight and clean as a voltage drop in the cable could be the problem as well.

Check the leads on the battery, if they are loose or corrided.
Check the positive lead from the battery to the starter motor, check for looseness or wire's broke.
If the starter is ok, then check the ignition.

I hope this help's

Sounds as if the starter is going bad. get a hammer and tap on the starter while someone tries to start the car. if it starts then the starter will need to be replaced. make sure you know the battery is good. best of luck