I have owned about 10 acoustic basses over the years.
The best were Guild B30e from the 1990’s it was absolutely stunning and loud. But they’re rare and not cheap.
A Tacoma Thunder Chief was the original intended purchase but it arrived smashed...(cheers TNT) - even broken, I could tell it would’ve been amazing; easily on a par with the guild.
I had a Breedlove 5 string which was nice too.
A Sigma was a cheep and cheerful surprise, I’d have another of those if I needed an ABG.
I tried loads of strings with ABG’s and found that the phosphor bronze strings were generally crap.
I loved the warmth of Thomastik’s - they’re mad expensive and feel a bit rubbery but the sound was beautiful.
To mimic an upright, I used roto trubass.
I have access to a Fender BG-32 which happens occasionally...