I would strongly recommend you try Ernst seed. Their Keystone Big Buck mix outperformed seed from Biologic(2nd year) and Tecomate on my plots last year. Their mix is 5 different clovers and brassica. You can also buy any type of seed by the lb and they'll also mix it for you.
I have been using Hilltop seeds Food plot mix's. They can mix whatever your looking for. They try to help you out with all your food plot needs. Sometime's they even will come out and look at your land. And will even help pick out the best seed and place to put your food plot. And even give you a good Food Plot plan.