I would look at models from the following mfg'ers:

- Reference 3a (although I would not limit them to calling them bookshelves - the de Capo's are among the best regardless of size)
- Totem
- Castle
- Living Voice
- Sonus Faber
- Focus Audio

as well as some of the models mentioned above - Thiel, Maggies, Martin Logan, etc

..this list could get long!!!!