The best Cobra is the one under your a$$.
Contemporary -- Not being made anymore so why include it as a choice. You have to buy someone elses preferences if you want a Contemporary. Great cars though.
ERA- My choice
SPF -- Very nice cars that come all together (typically) to owner to drive and enjoy right away.
Shelby -- Ask Evan and Turk
Kirkham -- Great car and a really good story to boot.
Unique -- By all accounts a great company to deal with. ( I have only had one conversation with someone in the company many years ago)
SHOULD definitely be mentioned in cars to buy with those above.
Others that I don't know enough about (except factory five -- who does not know about them?)
Hunter
Highland Racing
Boyd Doddington
Emerson
Shell Valley
Midstates
RU Crafters
Lone Star
Factory Five
JBL
Pegasus
Backdraft
A&C
LOTS of good choices.