The Mentalist 7C and Crazy Horses at Churnet 7C+. You have to do a fairly easy move standing up on a left pebble for the penultimate move of Crazy Horses. Everything else is right heel/foot.
At Impossible Roof, there's Hard Drive 7A+, which is all right heels. But it's high so youd need to be confident falling/landing safely.
At Anston you could do Beta Blocker 7A, Beretta 7A+, Beretta Extension 7B and Reserved Art 7B+. The start of Reserved Art is slightly harder without a left foot, but I don't think it would cause you any problems.
Feierabend at Stoney West 7B+. I haven't done the top move yet, but the only thing my left foot has done has been stand on a ledge at the start, and briefly stand on a big edge so that I can put a right heel on for the 3rd move, and a bit of flagging. It's highish at the top.
If your knee can cope with the walk in/out: Ride the Wild Smurf 7A+ at the Wave is lowball and nearly all on a right heel. I used a left foot for the penultimate move but I suspect you could find a right foot that would do the job. And if you wanted to try something harder, Short Wave 8A+, which finishes up Jugs 7A (slightly high).
If it still isn't fully healed by May, at Biblins there is Peckitts Traverse 7C / Tears of the Angels 7C+ / Arch Angels 8A which are R-L traverses that are right leg dominant but will need some contribution from your left leg. It isn't much harder to do The Bulge 7A, Pop for the Top 7A and all of their variants with just a right leg.