In new midrange (which to many would be, top priced aspirational dreams of limited affordability--its all relative), I am most taken just now with Beltuna, Ottavianelli, and Brandoni. Some of the Scandallis are very nice and playable as well.
There is lovely stuff to be had out there in your price range---This link is to the US Liberty Bellows page for PAs at 41/120---Note the beautiful new Beltunas and Ottavianellis---
https://www.libertybellows.com/shop/Piano-Accordions/120-Bass-Full-Size.htm
If youre willing to consider 37/96, there are some luscious choices on that page as well, including a double tone chamber Serenellini Regina with handmade reeds:
https://www.libertybellows.com/shop/Piano-Accordions/96-Bass.htm
I have no connection with LB, just passing on some very alluring possibilities.
Weve been over this ground before, but in your case I would strongly advise budgeting for a research trip--Another reason why LB might be a good prospect, due to their big selection and their location in a city with other visitable things to do while youre at it.
The same might be true of Petosa in Seattle, but thats an unknown, as they do not list their new stock individually. And Ive noticed that many accordion dealers say on their site they have a huge selection, but this is er, an exaggeration. The other thing about Petosa is their new stuff tends to be quite high-end and pricey. If it were me Id do a weekend in Philly and try everything at LB.
Personally, my aspirational drool would be one of the lovely 30/72s on offer by some of the Italian makers like Beltuna or Ottavianelli, and I probably WOULD buy sight unseen provided the instrument was new and came from a known, reputable dealer with a fair return policy.
But I think you, OP, are not going to be happy until youve checked out a wide spectrum of 41/120s and gotten an idea in person of what is out there. Once things warm up a little in Philly I would start checking out air/hotel deals.