I have used 1/32 oz crappie jigs, 1/80 oz even better if you can find them. Usually fishing them under an indicator. Thingamabobbers work great for this as they are easily adjusted for depth. 1/32 roadrunners in white, yellow, black.
jigheads with chartruese softplastics. These should all work well for Tellico, Watts bar, Norris lake where the main crappie forage will be small baitfish.
I have also tied up a few jigs with calftail and beadchain eyes, adding splitshot between two fly rig to get the flies down.
Some other flies that work well on crappie would be RLDs, hares ear nymphs, and prince nymphs. These are much easier to fish with ultralight fly rods.