Hi mate, I doubt you'll find a better place than Thomann for the stick basses. They might not be great quality, but at least they have the neck dimensions and fingerboard of an acoustic double bass, so you can play pizzicato and arco, albeit with a tendency to spin a bit while playing. Mid-range there's the Warwick Triumph Lite, but I've never tried one and reviews vary wildly like most other things. Good luck with your search.