By this point, there are hundreds of meditation apps. I keep it simple. I started subscribing to Headspace in Jan 2015 and have never looked back.
I picked up one more source for meditations along the way. Tara Brach is a wise teacher and guide. Her talks are available by subscribing to her podcast. Here is what she says about our itchy desire to figure out a solution for everything that might come up:
You have a unique body and mind, with a particular history and conditioning. No one can offer you a formula for navigating all situations and all states of mind. Only by listening inwardly in a fresh and open way will you discern at any given time what most serves your healing and freedom. If this experiment works for you, hit the heart to let others know they should give it a try!