Little that is new.
Several of the above would fit.

TR5/6 would be good
Austin Healey (repro maybe)
Older BMW Z3M (from the Breadvan generation)
997 Soft or Targa

Something from Lotus feels like it should be considered

If budget is in the Plus Six region ?
Pre-loved Mercedes GT Conv
Very early McLaren Conv 570c
Possibly a 911 of some age/model/trim/engine

Everyone loves a Morgan. Even me, unless it's broken again.