Docks are a sure fire key on Lanier but be prepared to search around. There are over 1 billion docks. You can do night fishing under some of the bridges also. I would focus up river as the water holds more stain (but can still be clearer than most are use to). I took some time off this summer and now I am still searchind to find them. If you like to troll Allatoona is a good option too. Another good place to look is hit up the brush piles that you fished looking for bass. A lot of them will hold crappie also. Put your boat is 20-30 ft of water and cruise the contour around points and humps. The brush will show up. More brush than docks lol.