Generally, you're going to be doing the standard Akiha corner combo (bunch of normals into 2C 5C 5C 2C) into 5[B] 4C 63214A. If you're midscreen, I'd recommend against it trying for it 'cause it's either hard (whiff 2A combo) or you sacrifice a lot of damage. The corner combo you can learn in half an hour. The mid screen version takes more effort. Just end in 623B instead if you want oki midscreen until you learn the basics.
If you just want to combo into grab, though, anything that leaves them in the air in front of you works. It's just that it's super easy to buffer 63214 during 4C. You can technically 2A 2C 5A 63214A universally, but it's dumb and does no damage.