For me, these are the primary food sources I have found or focused on over the years. Hopefully someone will chime in with those I have missed or overlooked. Or perhaps I have made some incorrect assumptions. Anyway, here goes:
White oaks, always a draw. Here are some other foods I focus on when scouting and hunting. Try to target in on what's hot of course since this can change rapidly.
Honeysuckle - year round in many places in the south. I have seen deer feeding on these in February but it is more heavily targeted by whitetails when mast crops are not available.
Muscadines - These fall early in the season here in GA. This season, for me at least, it seemed they fell too early, probably due to dry conditions.
Beechnuts - Early season food. I look for these around the season opener.
Acorns - White Oaks preferred, Red Oaks will be eaten but not if white oaks are dropping. Chestnut oaks (the big WHOPPER acorns) are pretty much ignored. Water oaks are dropped very late, usually after the season or very late in the season. From what I have seen deer will target these but perhaps due to the lack of other foods?
Farm crops - if available deer will feed on pretty much anything farmers plant. I have even seen them eat the tender growth (bud) in the tops of Tobacco plans and those plants taste nasty! Corn, Winter Wheat, Oats, Soybeans and any Garden vegetables are pretty much fair game. When I lived in NC we would plant large plots of peas (blackeye, purple hull sugar etc)and deer absolutely loved them!
Browse - any tender growth is targeted. The good part about a lot of browse come mid to late deer season is it takes a lot of it to keep deer fed so they move alot and will tend to focus on other foods that are more plentiful if available.
These are all my experiences in the south east. I am sure there are others I forgot or perhaps do not know about but hopefully this helps some.
Regards,