A sample exercise that you could do this core exercise progression for is the standing cable chest press. (ab-core-and-stomach-exercises.com)
On top of this, you'll take away hundreds of exercise progressions, regressions, and variations to help fit any client at any level. (coreexercisesolutions.com)
Both of these tutorials apply the progressive loading principle but use different exercise progressions. (ashotofadrenaline.net)