I use this one: https://www.amazon.com/1080P-Capture-Video-Recorder-Support/dp/B08SC8QFVC It's called the agptek capture card

BUT you need the older version of it that includes the ypbpr cable. You used to be able to find the old ones on amazon but I don't see it anymore. You'd have to look on ebay.

I use the agpetk. You want the all black version. The one with a red stripe is for streaming. It's about $50-$60 bucks. https://www.amazon.com/dp/B08SC8QFVC/