When are you going up? I'll be there next week as a marshal for the Duel in the Delta.
If you haven't left before I get back I should have some current info for you.
Booking a guide at this late date probably won't work as they are all swamped this time of year.
Try some of the flooded islands, Franks Tract which everyone beats on,
Mildred or Mandiville for a start. Also in the marina's they like to make beds by the dock pilings.
PM me before you go and I'll see if I can give you anymore tips.