Obscure brands worth considering

I buy from well established companies that will stay in business for a while and provide great support.

Good point ... up to a point. These are volatile times, we don't know who's going to buy whom, and most important, what they're going to do with our favorite brands when they do.

My first stereo system was an Altec-Lansing. They're still in business, but their home speakers with handrubbed oil walnut cabinetry are long out of production.

Other speakers I've had are ADS and Mirage (I still have several Mirage speakers and subs).

I really *hate* what Audiovox did to Mirage--they raided Mirage's patented Omniguide design and threw it on miniature "lifestyle" speakers assigned to a Scandinavian company they had acquired. Under Mirage, the Omniguide was featured on their $7500 flagship OMD-28.

ADS as we knew them and Mirage are both gone. In fact, in 2013 I saw the replacement parts for Mirage rapidly disappearing, so i sold my 5-yr-old OMD-15s and bought a pair of Magnepan 1.7s, which I still have (and really enjoy) today.

And although Thiel is still in business, the late founder Jim Thiel's design principles of time-aligned drivers and especially, first order crossovers, have been abandoned.

There are some companies and their products that are both very well established and financially stable, yet still relatively obscure; Music Reference and Eminent Technology come to mind. Their products aren't reviewed much (models aren't "improved" every other year ;-), and they don't have that many dealers.

A few decades ago I worked in high-end audio, and we did carry some more obscure speaker lines.
What I learned back then is that not all speaker manufacturers build their own drivers, they oftentimes spec out their needs and have them built by other companies, and would order a bulk number of raw drivers, essentially predicting how many they would need for manufacturing and post sale service.
We had a few manufacturers who never seemed to have spares available, especially for our customers who tended to blow tweeters.
Something to think about, if considering a more obscure product.

I buy from well established companies that will stay in business for a while and provide great support.

That has worked for me in every respect except with amplifiers.  Clayton Audio is a USA-based company but really a one-man operation that handles requests but no longer seems to be in full scale production these days.

On the positive side, Wilson Shen is a great guy to work with and a very talented designer.  After selling to go with well-regarded Class D amps, I ended up going back to Clayton amps and commissioning Wilson to rebuild/upgrade the amps I was able to find and purchase.  The guy who purchased my original Claytons remains very happy with them.  Before finding another pair of Claytons, I tried a number of well-reviewed amplifiers but none that sounded so much like real music to me.

Do yourself a BIG favor and seek out JM Reynaud loudspeakers; unfortunately only 6 dealers in the US.

Sometimes some of the finest things in life are the most difficult to find.  Ye shall be richly rewarded.