Right now I've been using an Extron DVS-510 paired with any HDMI capture card that will do full RGB data. It's not perfect, but it's by far the most flexible I have used (which does not include any RetroTink products). The Extron can do Composite, S-Video, Component, VGA, and some other weird stuff if you can adapt it right. The timings are all very adjustable as well and I can get some pretty sold results
If you want a PCIe card, I love my Datapath VisionRGB e1s for VGA capture.