It's a bit expensive but I highly recommend glendronich allardice 18. It has the peat you would expect from a speyside distillery, but muted with a nice backdrop of sweetness from sherry which is present but not overwhelming.
ETA: The 18 is definitely the best of their lineup. 13 is not enough sherry, 15 is too much. 18 is the baby bear of the bunch - juuuuust right.