Plow is followed by secondary tillage, to work the soil down and level things up, creating a seedbed. First, it would be good to know the soil conditions or where you'll plant, is it sod or rootbound with weeds, brush, or tree roots, stumps or any of that?
A moldboard plow will turn the soil over completely, and you can learn how to use a moldboard plow without difficulty, plow needs to be in decent shape, good shares at least. If you have thick tree roots or rock, it would be advisable to use a plow that has trip back, shear bolt or reset type, the latter you just back up to reset it after it trips. Spring trip is usually found on larger plows, mostly used by farmers for crops. Its possible you could use a subsoiler to sever roots, but with both of these, using an N or similar with no weight up front, a loader or something, I don't believe you'll want to use ground engaging implements like these where there are lots of interferences in the soil, given the potential.
If you have clean soils or the site is been cleared, just sod, or root bound soil, moldboard plow is an effective way to start.
Good friend has a cultivator like Jerry shows in the picture and we have used it to start new patches, takes a lot of passes, you will drag and bunch up clods, rootballs and clumps of sod mixed with soil, sometimes it will perform like a backblade. It would not be my first choice on new ground, but it does work, probably even better in soils with more sand or not as dense, or compacted. Its a good implement to have, friend has that one, I have the rest, plow disc and cultipacker. I don't recall using it after plowing yet, only concern would be going too deep and catching or dragging up sod, probably best to use it diagonally across the area in the same direction as the furrows were turned over, increasing depth a little at a time.
Plow and disc, or just a disc, or the cultivator, being my last choice, could work. A lot of the seed used for plots is smaller, so maximum tillage depth, may not have to be done, nice to have a deep seed bed for roots, depends on the plant. I think the worst is spending money on more expensive seed and not having the soil right. A poor job with the tillage, not turning the grass/weeds under completely, will show lots of it coming back. Initially, plowing is one way to get a good kill, I don't use chemical sprays or weed killer, for the most part and I've been able to get decent stands, might use it if I did imperial clover again, just to get it established, or spot spray later to keep it to a minimum.
Whitetail institute offers some nice products, expensive seed, but worth it. However, the local feed or supply store or elsewhere(off the web) may have something to fit a budget, I've planted a lot of oats mid to late summer, because its cheap and but works and does benefit the deer immensely, the larger the plot the better. Feed oats will provide a nice lush patch if planted in dense populations.
You should do a soil test, amend as needed, then till, plant etc. Small seed is planted shallow, oats being a larger seed, can go 1-1/2"-2" into the soil and you can plant them after plowing, and one pass with secondary tillage, I plant oats like that, plow then one pass withe disk, broadcast seed, then one more pass with the disc to finish, it almost looks like it was planted with a grain drill, meant for planting crops like oats.
Whitetail institute website will provide lots of information about food plots.
The 3rd video is entertaining and educational, check it out at 9:44 minutes in ! Nice pair of late model Ford industrial tractors and some blunt advice LOL !
Food Plot Instructional
Food Plot Instructional 2
Video with Ford industrial tractors in food plots