OLL6 (Square shape)

(r U2′ R’) (U’ R U’ r’) (Square shape at right back corner)

(l U2 L’) (U’ L U’ l’) (Square shape at front left corner)

These are one of the Anti-Sune patterns, but with double row turns for the first and last moves.

The second one uses left hand moves much, but as it is Anti-Sune relatively short & easy to turn, I prefer using it.