Warm and accurate bookshelves that can handle volume

Well so many suggestions. I would likely steer you towards something of greater size. Either a floor standing speaker or large bookshelf like the KLH 5. Your listening space is pretty large so I think something quite small will struggle to fill your space at higher volumes. A subwoofer, will extend the frequency range downwards but won't necessarily allow for that much greater volumes before you hit the limit.

What ever you decide, I strongly recommend you try to listen to speakers before you buy, I have had experience where I bought some very highly regarded/reviewed speakers without having heard then (Harbeth Compact 7s) and it turned out they were not my cup of tea despite what I would have thought based on reviews. I do agree with previous posts, they don't play very loud before they fall apart. If you buy used, and if it turns out you don't like them, it's easy to recoup your expenditures. If you can travel to increase your ability to hear more speakers then you will have a better idea of what would work for you.

AXPONA is coming up. Maybe worth your time to attend as it perhaps the 2nd largest high-end audio show I’m the world.  I went there last year to audition, choose, then purchase my speakers (got a sweet deal).  Lots of high end audio systems , components, accessories with very friendly sales reps to answer your inquiries.  Super fun and informative, highly recommended 

Sonus Faber Cremona Auditor.  Read the reviews.  Begs to be listened to loud. 

This is a lot of tremendous advice. Will hit the road, and never thought of going to an audio show. The you tubers say it is hard to listen properly at an audi9 show but might as well find out. From a near vacuum to being surrounded by audiophiles. 

Show conditions often not ideal, heard Magico S5 mk2 often sound great, but only ok at last AXPONA.  But you’ll likely hear something that “you” favor subjectively and will give much more examples /information than you currently have.  Helps if you have a list of brand/model speakers you’d like to demo.  If the brand is demoing a different speaker, then you can discuss w the sales rep the technical and sonically similarities and differences between their models - there’s often a “house” sound due to consistent components and/or design voicing.