Is the seed for a lawn, pasture or a native restoration area? Is this a wet, dry or an area with adequate moisture?
It's a residential lawn in an area that drains well, but I have downspouts feeding this area. Of course, if it doesn't rain for extended periods it will get very dry and I will have to water. I also have a rain garden next to the area fed by another downspout. Gets about 6-8 hours of sun in summer.
A blend of turf-type fescue, rye and bluegrass should work.
The link below will help with variety selection. The link will also get you to turfgrass publications that may be helpful.