I have some cool ones, here's a few:
CH BT B+K WS G 3A WS 3B Prep <ender of choice>
CH 22K 3A WS 3A WS 3B Prep <ender of choice>
44A+B WS 66B Prep A+B (not a perfect combo all the time, I mostly recommend the CE combo instead)
Prep K BE WS B+G WS 66B+K - the throw is breakable, but only if the opponent is facing forward. If you get a back-throw you can't land the 66B+K, but the damage is about the same and you can non-combo a 1A in reliably.
I could do a whole post about Prep K BE, and it's wallsplat properties. You can land more moves than normal due to how high the opponent wallsplat. 22B / 66B and other goodies.
Not to ruin people's practice mode fun, but you can do stuff like Prep K BE WS 22B 3A WS 2/8B+K 3B Prep BB BE. Just remember you cancel the prep bbb stun by using 2/8B+K in a combo, and thus can't fit in a CE.
There is basically a wall combo for every darn angle you can imagine, probably too many to list. Raphael's wall game can be monstrous. You can get evasive wall pressure with 22B which can allow a 3A wallsplat and a 66K followup if they fall short of the wall.
22B 3A to a non-combo 66K 236B is a great string when forcing opponents to walls as a blocked 66K forces them back beautifully for a 236B followup. You will hopefully not get to the 236B and land the wallsplat though, and get in a wall combo. If 66K hits too short for a wallsplat use 33B, not 236B.
I believe 66K is also Raphael's best option post guard break or guard impact if the opponent has anything behind them in terms of walls or ring-outs. Otherwise 66B - Prep A+B or 33KB BE with meter are his best options outside of prep. 22B can be used against walls for slightly more damage, angles allowing.
If your back is to a wall and you need to rain shit and thunder on someone, go for 66A+B BT A/B (A seems more reliable at close range to the wall) 44A+B WS 3A WS 3B Prep BBB CE.
One more thing! Perfect 33KB BE after SE B if you have meter. It allows for more damage and free prep reentry via 6BB for a shot at SE A/B/K or prep A+B.
Edit: Auto-correct >:3