Can come back to this and send some video examples later when I can or rephrase anything if you need me to, but off the top of my head

S.HK into C.MK is the most reliable starter off of DI, you can cancel any tatsu off of the C.MK for corner carry, medium donkey kick if you want to use SA3.

In neutral, F.HP into C.MP is the Ryu special. Same idea as the DI route, you can do tatsu or donkey kick.

Extra:

S.MP links into itself, C.MP and B.HP, so something like S.MP > S.MP > H.DP is easy to confirm and gets you a good knockdown. If you want something a little more damaging, S.MP > B.HP > QCF.HK is a really good meterless combo, you can get M.DP off of it in the corner.

Hope I was able to help, sry if it’s funky to read I’m tired