It depends on the planter too, the old plate (pre 1980s) planters could plant everything you list (corn/beans/milo) for sure, did some research and found out that they also have sunflower, and sugarbeet plates. Based on seed/lb size theres a few more you could plant with some of the plates, it might take some figuring, but can be done.
A few common food plot species and their approximate seed/lb
Red clover 180,000
White clover 500,000
PTT 170,000
Nitro Radish 25,000
Rape 175,000
Corn 2,500
AWP 4,000
Sorghum 22,000
Oats 15,000
Rye 23,000
Sugar beets 10,000
Soybeans will probably be about 3000 Im guessing off the top of my head
Based on that, you could plant AWP with the bean plate, and radishes with the sorghum plate, also might be able to use it or another plate to seed the rye or oats depending on how many seeds fit into each space and figure out the rate from there, but your rows will be whatever the spacing of your planter is, or half if you split them. everything else could be sown with a spreader and probably should. I know our White planter has plates for wheat which would cover rye too, and maybe oats. But thats way out of a food plotters budget and it has to have a hydraulic source to run the fan for the air. So for me, Id rather have a planter with a full set of plates. It makes it easier to spray your crop without running some over, and whatever you cant plant with it, usually needs to be spread anyway, and the smaller seeds like the clovers really need to be in a seperate small seed box, which some drills dont have. A drill is only slightly more accurate than a broadcast spreader, its really just a meter that lets the seed fall right behind a disk and then covers and packs it, no different than a harrow pass and a cultipacker.
heres a place that makes plates for the older planters, the JD style was the standard back then,
https://lincolnagproducts.com/faqs/