Yep, the Agile 8, done everyday is Wendler's go-to recommendation. Certainly not a bad choice.
Are there specific issues/bodyparts that give you trouble that you're looking to correct or is this more of a general maintenance and prevention thing?
With mobility work, I usually prefer a few choice movements, individualized for your/mine/whoever's individual case, rather than just doing general work. When in doubt, making sure you hit the hips/low back and t-spine is usually a good bet.
I personally use an overhead lunge variation, a plank variation, and the cat/camel before every session, plus some hip stuff right before squats.