Funny, my main brookie rod is a 7'6" 5 wt, and I throw 7 wt line on it. Been looking for a backup, and yes, they are hard to find. I like short and stiff for my brookie rods. There's a "that's what she said" joke for ya.
Funny story, at one of the FF shows, before Covid, Joe Humphrey's was doing his casting demo thing. After it finished I asked him what he was using. Orvis something or other, of course. I said, no, weight and length. He said "oh! It's just a little 7 ft 6 wt." I said Joe, they don't make that rod in a 7 ft 6 wt, I've been looking for something like that. He got this goofy grin, and was like "I know. But for me they do."