Looking for grass, pasture mix to plant

Hello, I am new to Permies. I currently keep chickens and bees, and am looking to start raising a little beef on our little place. I have two pastures that I want to plant for really good grazing as I want to raise fully grass-fed beef. I have read some Joel Salatin, but didn't find out what sort of mix is best to plant. If any of you have a book or article recommendation for me, that would be great. I live in rural Illinois, if that makes a difference.

Here is a 10 year old article from Acres magazine.
It describes a mixture for an herbal ley pasture.

You will probably need to adjust species & percentages due to climate differences.
(And, he mentions 'lucerne' which is what the English call 'alfalfa'.)

An herbal ley has the advantage of providing the animals their own medicine chest so they can 'self-medicate' as needed.

http://www.acresusa.com/toolbox/reprints/Oct03_Forage.pdf

n thing to remember is that you want 4 types of plants 1.N-fixers, 2.Drymass, 3.Pest control/medicine, 4.Aerating roots
I would plant 7-12 plants in each category.
mustard
burdock
alfalfa
lamb's quarter
fava bean
sweet clover
lupine
landino clover
buckwheat
hairy vetch
daikon
black-eyed peas
comfrey
sun flower
yarrow
borage
chamomile
dandelion
turnip
bee balm
lavender
mullein
pea (pisum arvitiuse)
stinging nettle
chard
maximillian sunflower
sorghum