I am not sure if I am 5b or 6a. I think they changed my zone to warmer a few years back so I may have to post on both. Here is a list of some plants, including evergreens that do extremely well in this zone. I am purposely not listing dormants because almost all of them do well in this zone.
Autumn Jewels
Avante Garde
American Revolution
Baracuda Bay
Best of Friends (ev)
Black Plush (ev)
Buddy's Betsy
Caesar's Head
Country Pride (ev)
Critic's Choice (ev)
Curly Cinnamon Windmill
Darla Anita
David Kirchoff
Destined to See (ev)
Ed Brown
Fascination Street
Free Wheelin
Get Jiggy
Golden Tear Drops (ev)
Gram's Dream
How Beautiful Heaven Must Be (ev)
Indian Giver
Jan's Twister (ev)
Japanese Brocade (ev)
Jacki Kropf
Leroy (ev)
Lady Neva
Laughing Clown (ev)
Larger Than Life
Lavender Reflections
Lily Munster
Linda Daniel (ev)
Linda Beck
Larry's Obsession
Lexington Avenue (ev)
Mask of Eternity
Mildred Mitchell (ev)
Mokan Butterfly
Moonlight Orchid
Navajo Princess
New Perspective
Palace Garden Beauty (ev)
Prairie Blue Eyes (ev)
Puccini (ev)
President Ronald Reagan
Prickled Petals (ev)
Royal Heiress (ev)
Sexy Sally
Skinwalker
So Lovely
Spacecoast Cranberry Kid
Spacecoast Starburst (ev)
Strawberry Candy
Thais (ev)
Two Part Harmony (ev)
Velvet Eyes
Wisest of Wizards
Wind Frills (ev)
Xia Xiang