Cranks with the turn of the key, but next try nothing?

It sounds like the starter is going bad but to be sure lets test for power at the starter solenoid trigger wire, if it has power in the crank position and the starter is not working we need to replace the starter, but we should make sure the battery terminals are clean and tight as well. Please go over this guide and I included the starter location and how to change it out in case you need it.

https://www.2carpros.com/articles/starter-not-working-repair

Check out the images (below). Please upload pictures or videos in your response of any problems so we can see what to help you with. If you are going to change the starter out disconnect the battery first.