I am not sure what the problem is, as it is basically all about the desired stack and reach. Both can be achieved with drop bars on most mixte frames.

Mrs non-fixie prefers drop bars these days, so I've converted a couple of her bikes. A shorter stem will usually do the job.

These Mérals originally came with both northroad and drop bars. The first version I built for mrs non-fixie was this one:



Rider feedback made me exchange the stem for a taller and longer one, which was the version she used for L'Eroica in 2019:



After that event, a shorter stem was used for the conversion to drop bars. I used an even taller one for additional comfort. This is the version she is totally happy with and still rides today: