Are there any good, affordable, matrix switchers I should be looking at? Something akin to how I use my Extron Crosspoints to loop a signal through multiple transcoders/converters/upscalers/downscalers to throw over to a display - all without having to switch in or out a single wire, WITH savable presets? I think Extron, Kramer, or Crestron devices can do things like this, but there's so many models, many are still VERY expensive, and I've simply never used one of these before so my knowledge is lacking.
My display is a TCL 49" 4K flatscreen (49S517).
Possible HDMI scalers I want to use:
• OSSC
• Framemeister XRGB-mini
• Extron DSC 301 HD
• TVOne Corio2 scalers (C2-2200A's)
• TVOne Corio2 Multiviewer (4x in, 1x 1080p picture out, 2x2 grid)
• DVDO VP50 at some point in time...
Possible HDMI consoles I will/might use:
• Xbox 360 (HDMI out, but I'll be using VGA on this as well)
• Maybe PS3 (which I own but literally never played)
• Maybe Xbox One X (usually in my living room on 65")
+++ the ability to get a RGBS signal from the Crosspoint into the HDMI matrix switcher to begin with
Top contender seems to be something like the Extron DXP 88 HDMI:

Last DXP 88 went for $275 on eBay - with many seemingly going for double to quadruple+ that (especially the newer 4K version), and that $275 is still more than I really want to pay for this experiment (especially considering my Crosspoint 32x32 was $42,000 in 2005...and I bought it for $130 shipped in 2018 lol)...
Anybody have suggestions of some other choices I can start to look into more? There's several other Extron lines as well, ones with 4K too. I know Crestron makes some, and I expect Kramer as well. Totally fine with a brand I've never heard of out of China or whatnot as long as the video quality is still good. I think I definitely need a 8x8 minimum (have to diagram out everything still...more is better but those don't exist - affordable at least).
I think the 4K matrix switchers are going to be out of my price range for the foreseeable future (did see a 8x4 4K go for cheap on eBay recently but that's probably rare and I need more outputs), but I have to say I would REALLY like to future proof this setup as I fully expect a 4K upscaler similar to the OSSC to be available in the coming year(s), and I'm already using a 4K TV right now... so if that's possible then that would be great. Any other brands/models I should look at?
Second part of this puzzle I'm struggling with is how to best get my analog RGBS signals into the HDMI matrix switcher to begin with since that has no analog inputs, only HDMI. Right now I can throw an (analog) RGBS signal from my Extron Crosspoint 3232, to the OSSC, Extron DSC 301 HD, or XRGB-mini (VIA SCART or RGBS BNC's), then from the output of any of those devices it's converted to HDMI - but if I'm going to accomplish what I want to, I think I need to be able to throw that analog signal straight into the HDMI matrix switcher to begin with (and again, that switch has no analog inputs at all), so I can run all the different chains I want to so I can start more easily testing out different combos to decide which I like the best for each of these consoles upscaling to my 4K TV.
I have a Kramer FC-49 (which is DVI input + Audio > HDMI output - which can take RGBS signal as an input from the Crosspoint by going BNC to VGA cable, then using a simple VGA to DVI dongle), but things like 4:4:4 color space and such are lost on me so I don't know how this works quality-wise. I also use inexpensive Tendak HDMI to VGA dongles on my TVOne Corio2 scalers and multiviewer, so maybe they're an option as well? (I would definitely be using those, as I am now, on the Corio2's with DVI-U -Universal- inputs and outputs – this is how I get HDMI into and out of the Corio2's currently).