After a blocked Blanka ball you can cr. RH and hit if you walk forward a tiny bit first. This takes about 5 min. to practice in training mode. Yes, you can CC with this–I usually use cr.RH x 9, hcb + RH, qcf-hcb + punch.
Psycho Crusher is a bit different because Bison doesn’t bounce back like Blanka. I think you could just B&B him with s.strong, twd.strong, qcb + Fierce x 3 or something. If you really wanna CC him though, then don’t block the PC at all, just activate and anti-air that piece of trash with dp + Jab, cr.RH x 8, hcb + RH, qcf-hcb + punch.
If you’re close enough to the corner by the 6th cr.RH, then instead of that finish you can s.Fierce x 2 xx qcb-hcf + punch (wait for two stasis hits) dp + Fierce… This is a bit harder and only adds about 200-300 damage. You could also do this if you can get to the corner by the 6th cr.RH; dp + jab, cr.RH x 6, hcb + RH, dp + jab, qcf-hcb + punch… This is going for looks mostly. Point is, why block PC when you can CC it directly?
If the PC goes by you and you block it (like if you don’t have meter), then I dunno exactly what you can do because it’s usually not much. Depending on the positioning of both characters on the screen, you could possibly cr.RH Bison, but you could also try to hcb + RH to chase him down. I would say this is often risky though, because Bison’s recovery out of PC is good. Note that you can probably just flat out anti-air him with dp and at worst it trades assuming you timed it right. I’m pretty sure a straight vertical j.RH can do it too, but that’s playing theory fighter on my part. Test some of those out in training mode and see what’s most efficient.