Lettuce in zone 7B

Happy Labor Day my friends! I hope you are all having a great day so far.
I am in need of some help. I want to grow some some lettuce for the fall but am unsure what varieties consider where I live. I’ve never been much of a lettuce guy until recently. I prefer a head lettuce but I’m open for any suggestions. I’d also like to know what your favorite companions are. I have a large cold frame that I can use and the garden itself has a decent amount of frost protection.

I suggest you try several varieties and see what works out. unless your space is extremely limited. my thumb turned black this year so have suggestions as to which varieties. the local extension service might know what will grow well in your area