Phlomis fruticosa and P russeliana are yellow Lamiaceae.

Not sure if it's hardy in your area, but salvia madrensis is yellow.

Hey, I'm in 7b so I don't think S. madrensis would work but love the look of it. Someone also told me that achillea is very deer and rabbit resistant.

What about Salvia koyamae

Or Salvia bulleyana. Or verbascum. Lots of yellow choices in this genus and very deer resistant.

Collinsonia canadensis. Stoneroot, richweed. amazing, showy flowers. There are other Collinsonia species in your area.

Belamcanda 'Hello Yellow', any of the yellow Coreopsis cultivars.

Thanks for all the great recommendations! I’ll check out if there’s any solid coreopsis varieties around 3-4 feet. I do have “Zagreb” near the mailbox but hadn’t even thought about taller varieties. Someone also suggested Helenium to me, which also apparently come in yellow varieties (I usually see them in orange).

I just saw a new yellow flowered Agastache at a nursery. Bred by Terranova, so probably not long lived LOL.

If you don't like it that's fine but most sites list it as hardy in zone 7. I don't think you'll have trouble overwintering it.

Lantana New Gold (I think thats the name) is reliably hardy here in Oklahoma zone7b and after living in North Carolina, I can tell you our winters are worse than yours. I've had one in the same spot for about 6 years now. It gets about a foot and a half tall and spreads out very wide but can be trimmed back. Miss Huff is a more upright type that is yellow, red and orange, it gets pretty big and needs some space. Its a heavy bloomer and touted to be the most cold hardy. I've also got a heavy blooming solid orange type that is winter hardy but I don't know the name of it.

Agastache doesn't do well here in spite of good drainage on a slope in sandy soil, either the humidity gets it or a rainy spell will do it in. I finally gave up trying.