It's early for full relief efforts to be on the ground but here are the ones I've physically come across so far.
Anyone interested can look them up and see if their mission corresponds with your intentions.
There are probably lots more, but here are those I saw.
Florida Baptist Disaster Relief
https://flbaptist.org/disasterrelief/Mercy Chefs - they got out fast... feeding hungry people since early this morning.
Second Harvest Food Bank is out in force.
Samaritan's Purse
Feeding Tampa Bay
Catholic Relief Services
Red Cross (I'm not in favor of giving money here)
I.D.E.S. as almost always - first and most, and most quiet about their work.
Feeding South Florida
Florida Georgia Catholic Charities