Your request is a very difficult one because so many plants succeed in very limited climactic conditions. You can find some companion planting books on general perennials and the Atlanta library system has a few.
You might also try finding (I've got them on Ebay) old copies of Southern Living's garden yearbooks. They were mostly printed in the 90's and had many articles with things that you are looking for.

GGG

Thanks for the info, GGG. I'll look into those Southern Living yearbooks.

'Companion planting' usually applies, I think, just to vegetables, such as your marigold, basil and tomato combination. You might have to come at this problem from a different angle. For example, you could try a website such as the Bluestone one below and use their lists of particular plants for particular conditions.

Here is a link that might be useful: Bluestone Perennials Lists

That is a great idea scmatlanta!
I would also suggest if it's annuals you like, you take a trip (and around now is a great time) to the UGA trial gardens. I went last year with Danita, and it was a great trip. We learned a lot about annuals - which survived where, which varieties did best, great companions to grow together etc.
Beautiful too!

GGG, I've been to the UGA gardens and I agree that it's worth a return trip.

scmatlanta, thanks for that list! It's an interesting read, for sure!

Thanks to both of you for your input.