I’ve seen Gotham succesfully paired with lots of serif faces, but I personally prefer something with a bit of substance (weight) and/or personality:

Tiempos:
https://klim.co.nz/retail-fonts/tiempos-text/

Ashbury:
https://www.fontshop.com/families/ashbury

Abril:
https://www.fontshop.com/families/abril-text

Bauer Bodoni:
https://www.fontshop.com/families/bauer-bodoni

Adobe Caslon:
https://www.fontshop.com/families/adobe-caslon

Hoefler Text:
http://www.typography.com/fonts/hoefler-text/styles/

Erhardt:
http://www.myfonts.com/fonts/mti/ehrhardt-mt/

Why are you using Gotham?

hhp

...because the letterhead is set in Gotham.

...and then I was talked into believing that Gotham Narrow would work by the Hoefler web site.

Gotham speaks for so many things that it has lost its voice.

hhp

I agree (said after hundreds of Gotham and Whitney dollars spent at Hoefler). But so have all my go-to typefaces: first univers, then interstate and DIN. I'm searching.

> go-to typefaces

you feel chased by changing trends – ?