Bookshelf/Small Speakers

There are a million small speakers that range from $200 to $50k.  Budget would be super helpful.  
If you like Thiels with a Carver Amp, I am going to guess the sound profile you like will be a bit forward.  
For sound, and not crazy expensive, I would look at:

raidho x-1 with stands
vivid Kaya S12 with stands
Wilson-Benesch Vertexes
Verdant Nightshade 1 and Blackthorn 1
B&W 805 D3s
focal Kanta no 1 and Soprano No 1

these are all brilliant speakers that will run $6k to $13k with stands and short of some really crazy expensive speakers, these will sound great, and will give “best” type performance.

there are lots of less expensive options but won’t be “best” type quality.  

Check out Wavetouch audio V2 speakers. The best sounding room at The Home Entertainment audio show 2021 (Long Beach, CA) to my ears. It was a smallest sound system (Oppo bdp-95, Chord Hugo DAC, and a 3 watts tube integrated amp only) at the show. The sound was very realistic.

https://www.youtube.com/watch?v=0hUIlxgcF1k

https://www.youtube.com/watch?v=JDfzDqOhSEI

I've really been enjoying a pair of ProAc Tablette 10. Clean, articulate, great separation...perfect for a smaller room.

Dynaudio Heritage.   I’d never listened to Dynaudio speakers before last week and I’m not a fan of small speakers.  Three and a half years ago, wife and I had to move into a travel trailer while a LONG renovation was done.  I spent months auditioning, buying, trying out dozens of vintage and current production small speakers and ended up with three that I thought were very good - ProAc Response 2s, Revel Performa M106, BMR Philharmonitor.  All easily bested the KEF LS50 and can be found for less than $2000.  Last week I happened to wander into a store that had the new Dynaudio Heritage.  Those things blow everything else out of the water!  They’re beautiful, too, with very fine walnut veneers.  The only drawback is price, $7000.  I’m still waffling but will be buying a pair, I’m sure.  Can’t stand the thought of missing out on the chance to own such fabulous speakers - limited run of 2500 pairs.

I always think of Dynaudio as one of the gold standard brands.  Can never go wrong.   Unless the amp is not up to the task.