I fit Dunlop SP sport because of the low noise level and excellent wet weather performance.
I know other will argue to Toyo Proxis.
Yes Toyo Proxes definitely , these are really good I'm wet or dry.
They are actually competition tyres made in a softer rubber than usual , but in a light car like a Morgan you won't wear them out , they will age age out well before then (unless you are actually competing on them)
The Morgan sprint and hill climb competitors use them and rate them highly . The only thing that stops me using them is they are not available in my size (205/60 x 15)
About £75 apiece from Black Circles
https://www.blackcircles.com/catalogue/toyo/proxes-t1-r/205/55/R16/W/91/f?tyre=33871878