Deer seem to prefer white oaks ( a group of oaks that tend to have round lobed leaves) but these often only produce acorns bi-annually. Red oaks (pointy leaves) tend to produce more annually. Depends on which area you live in as to what type of oaks are available. There's also beechnuts, chinqapins, chestnuts, persimmons, apples, locust pods and many other mast crops.