Pay attention to what Bert says, he is a generous fisherman with a lot of good experience.
My knee jerk response without knowing all your specifics are these generalizations :
Structure ( even bridge columns ) over 20' deep will hold them pretty well right now. Electronics will be a must unless you are on a bridge or up the creek ( no pun intended).
If you are fishing blind, just check your map to find channels and and work the columns first that are deepest. They are still transitional right now and much like the weathermen, are a bit confused with our weather temp transitions. They cycle based on a combo of light duration and temp fluctuations which are quite out of sync right now.
Standard depth guesses will still be in effect. They will be nearer the surface right at sunup and sundown. as the sun rises they migrate downward to the day's suspending depth. If I get up early enough to be there at sunrise, I start at 3-5' deep over much deeper water and drop down in 1' increments until I find them. If I do that with no joy I start going to the bottom and pulling up a couple of feet and hold as still as you possibly can.
My last really good day for Crappie on Hubbard they were 6-7 deep over 22' of water until about 9 AM and then sunk down to 12' deep for the day. We weren't killing them but still limited by noon culling at 11". surprisingly enough the dinks were not very bad the last few trips. Mostly decent fish. The water was not much different than right now. I think it has only dropped about 3 degrees but the sunlight has shortened considerably.
I am really busy until about mid January or I would be happy to go out with you. Best of luck. Phill