Mobility is such a big topic, and is kind of in vogue at the moment, so it can be hard to figure out the good from the bad when it comes to exercises and routines to follow.
To help, the folks at Hero Academy have put together a massive list of 100+ mobility exercises, organised by body part. All you need to do is click the body area you want to work on, and follow the links to find all the details you need from a variety of sources. If you see anything from Tom Merrick (Bodyweight Warrior), I can recommend it - the guy's good!
If you're not sure what body part to pick, or if there are too many body parts you want to work on for the time you have, just think about what is causing you the most pain or discomfort right now. Just work on that, until it no longer bothers you, and then pick another area. Eventually you will (hopefully) clear all the troublesome areas and can just mobilise generally as you go.