This is a short fill idea I came up with by pairing the six stroke roll, paradiddles, and paradiddle-diddles. Try it out and see how you can use it.

Complete Fill

L R l l r r L R l l r r L, R l r r L r l l, R l r r l l R l r r l l, R

Broken Down Into 3 Parts

Part 1. (Six Stroke Roll Variation) L R l l r r L R l l r r L

Part 2. (Paradiddle)  R l r r L r l l

Part 3. (Paradiddle-diddle) R l r r l l R l r r l l