Single diver looking for middle keys dive recommendations

[Mike B.]

i am an OW diver with about a dozen carribean reef dives, including a few drift dives. So, not brand new, but still getting experience under my belt. I will be in Marathon for a week next month - I am looking for a good, safe charter w/solid equipment rentals for reef dives within an hour or so of Marathon. Prefer small group dives; assume I would get paired with a buddy on the trip Ithat has been my prior experience). Any recommendations or advice would be greatly appreciated.

Mike