Everyone gains a huge advantage when their opponent is cornered.
So if you want to start with a concrete gameplan which is stupid simple, just work on cornering your opponent.
Ryu has great normals for keeping someone cornered and also good ways to take someone to the corner (specifically tatsumaki).
So focus on keeping yourself out of the corner and putting the opponent in the corner.
He has good stun potential and when someone is cornered they have fewer options to deal with your aggression. They have to escape ASAP which can lead to easy damage from stuff like back + roundhouse which can be combo into standing short, etc.
Remember, in v-trigger his super guard crushes. In the corner they can’t be pushed away further so you will more easily get some kind of real follow up even if they block. You’re basically guaranteed to get something if you put them in the corner.