Delta,
This question, or one quite like it, has been asked before and many of the active FIEs listed in those threads. From my knowledge of many of them (there are not that many) most will be rated on the B206.
Mike Green
Leon Smith
Mike Buckland
Stuart Hughes
are ones that I know and would recommend personally, but I can't think of a mediocre FIE.
Not sure of your situation, but why not ask your local/favourite flying school? You will need to put together a TRTO/aircraft/instructor combination. This may be more important if you need a renewal, rather than a revalidation: you might then need 2 people.
I assume you have the other elements in place i.e. sufficient currency and/or a seminar within the last 12 months of your planned flight test dates.