Lots of knowledgeable posts already and a soil sample is a must. I'll add one more opinion based on my experience with my poor soil (pine tree plantation) and my research.
A clover blend is the best I've come up with for my smaller food plots with high acidity. They can be broadcast by hand or spreader on top, regenerate on their own with heavy browsing, and do a good job attracting deer and turkey. Add lime now to your plot, it won't help now but you'll be better off for the fall over seeding.
Here's an article that might be helpful.
https://www.tenpointcrossbows.com/bl...need-to-plant/
Brassicas are great but for my small food plots, I find they get browsed so heavy they're gone almost immediately upon coming up.