I would say the first thing you really want to do is determine what it is you want in a stand, then look locally, and ask at local furniture stores if they have anything really close to what you are looking for.
I would browse here, even if you can't get it delivered, you can figure out what will work with your specific equipment...
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IMO, a proper TV stand for a surround sound system will have enough space for your center channel as well as the AV receiver without suffocating either piece of gear, then there will be additional space for other components. This typically means at least a 3-bay credenza style of some sort.
Something like the Solidsteel, as linked above, seems about as generic as it gets and similar to what you already own.
I do find that getting a cabinet with enough space for a larger center channel speaker while still having enough room for a TV on top and full sized AV components can be quite difficult to find as center channel speakers can often be wider than standard 19" wide AV equipment. This makes the stand kinda funky in design to work properly.
You could consider a separate TV mount behind a stand to float the TV above a center channel, or a stand which has a integrated TV mount.
ie:
https://www.wayfair.com/furniture/pdp/fitueyes-corner-tv-stand-for-tvs-up-to-65-ftys1863.html
Certainly, Salamander is a pretty solid recommendation as they really do design cabinetry designed around AV as a solution and they offer the option to add a TV mount to most of their cabinets which can allow a center channel to sit on top. They are highly configurable, and work well with standard with AV components...
Furniture systems for home theaters, entertainment centers, audio systems and other AV and organizational uses that take customization to a whole new level.
www.salamanderdesigns.com