Some experience here…first, why 2x10 instead of 1x15 or 2x12?
That said, the GK combos, 2x10 or 2x12, are great deals, sound good, and thread a lot of needles on ergonomics and practical usability.
An NOS Genz Benz Contour combo would rule - they were getting blown out at around $350 when Fender pulled the plug on GB…I have one, which I use periodically in a remote location, and it gets great feedback for small/medium bar gigs.
Markbass is not for all - Me, I like the amps, but can't get with the enclosures.
There are luxo combos that probably sound great, but I have no experience.
So based on GK pricing, if you can get to around $700, you should be quite satisfied.