Fodder have dipped this weekend as they often do with new promos. There is a guaranteed Hero SBC expected this week as well, so fodder should be in for a rise. 85s are generally a good option as they are versatile for SBCs with multiple different rating requirements. There were three 88s required for the last WC Hero upgrade, so there is a chance they rerelease those requirements as well.
Look to sell in the middle of next week on Wednesday or Thursday.