In regard to those A+G > wall combos, you have to be close to the wall with A+G otherwise the followups whiff. A+G crouch throw always works, but depending on the distance and angle you may get the back throw or a normal crouch throw.
A+G > 6[A+B] headgrab isn't always consistent, you sometimes get their side instead of head, but IIRC a crouch throw will tech trap.
A+G > wall 66B is kind of inconsistent too. You can get either the normal CH 66B stun, a BT stun, or a resplat.
My personal favorites are A+G > wall, 6B. You can follow this up with a head grab if they stay on axis, or go for 11_77K for FC wakes, or 22_88B.
Also, A+G > wall 3A stuns. It's shakeable, but it puts them in a really bad spot. I like to mix it up after. You can get a 66B if they don't shake. If they do shake, A+G to resplat or 2B+K work well.