Do you have multi way or full range in mind?
That is a take off on the econowave that started here on AK.
Are you thinking bookshelf (probably not as most are not highly sensitive), floorstanding, wide and short, tall and thin, ??
Full range would be one driver doing everything. Can be very efficient and imaging is great but few drivers can produce low bass and high treble.
After that, two-way, three-way, etc.
What kind of music do you listen to? Which parts of the music spectrum are essential to get right? Deep extended bass for example?