Winchester 190s that are for sale are worn out or broken, and will be less reliable than Armscor M20s and M16s.
I recommend avoiding them.
People don't sell 190s that work.
Winchester 69s require paying a Winchester tax. They're not worth it.
(On Gunbroker) Marlin 880s run about $240 at the bottom end now. (+shipping, tax, fees, transfer, etc.)
A good one will close at $300+, if not $400. (+shipping, tax, fees, transfer, etc.)
I have a Gunbroker search that emails me for every Marlin 880 that gets listed (even if listed improperly). That market is broken and prices are increasing. I see every one listed and watch every sale; and try to follow them in other auctions, as well. Marlin 880s are not worth the price at most auctions, especially most of them on Gunbroker.
Marlin XT-22s, however, seem to have a lower barrier to entry when listed poorly (great deals if listed without photos). Better deals to be found if you're patient. And they're newer than the 880, with (generally, depending on year) better triggers.
Older Marlin models, like the 780, that used the M25 (curved) magazine can often be found for less than the modern models. And there are dozens of variants. Lots of good deals there, especially when they fall into "listed poorly or in the wrong category."
But, keep in mind for any of the models that use "modern" Marlin magazines (the "795 magazine"), that no one is making them any more. What is on the market is all we get until (and if) there is enough demand for an aftermarket company to make more.