Welcome. If you like fairly large dive boats with no-added charge guide service, Rainbow Reef Dive Center is quite popular. If you prefer a smaller '6-pack' boat without the no-added charge guide service, Quiescence gets good reviews. I've noticed a bit farther south past Key Largo, Conch Republic gets excellent reviews.
I dove with Rainbow Reef Dive Center way back in 2013, so my info.'s out of date as a lot has changed, but maybe the report can give you some idea what's going on. You'll want to pick up an AOW certification if you want to dive deep wrecks like the
Spiegel Grove,
Duane and
Bibb, unless things have changed.
Key Largo with Rainbow Reef Dive Center 2013 -
http://www.scubaboard.com/forums/fl...iving-key-largo-rainbow-reef-dive-center.html
I've been to Jupiter twice. That's a bit farther along for when you have more experience (and AOW and nitrox cert.s - I highly recommend nitrox for Jupiter, from what I saw).
Jupiter 2014 -
http://www.scubaboard.com/forums/florida-diving/491927-jupiter-trip-report-9-7-14-9-11-14-a.html
And shark feed diving, even if you have no objection to it, is something I don't recommend rushing into! But just so you know it's out there:
Emerald Charters Trip Report 2017 -
Trip Report - Emerald Dive Charters Trip Report
Be aware of Blue Heron Bridge; I've only been once, it's famous and surprisingly nice. I haven't dove out of West Palm Beach or Boynton Beach, but you can find trip reports by others here for them.