Food is best year round attractant, obviously ... use food plots. Clover, soy beans and Wild Game Sorghum.
Don't use this as an attractant as such, but do have lots of trail cam shots of deer visiting mineral licks that I have created: Granulated white salt (100% NaCl), Di-Calcium Phosphate and a high calcium mineral supplement such as for dairy cattle. Mix it about 2-1-1. Works great and provides at least some much needed minerals for the critters.