Help: How to rip DVD on Mac? Is there a DVD ripper for mac that is compatible with the new system?

You're on the right track with HandBrake and MakeMKV! They are still the top recommendations for a reason, even on the latest macOS. The good news is they work great, and they can handle your needs for creating MP4 and MKV files.

MakeMKV is able to bypass protections onDVD and turn it into a single MKV file. Think of it as a "lossless" tool—it copies everything from the disc without any quality loss. It's super fast because it doesn't need to re-encode the video. Just as other users said, it's easy and straightforward.  Handbrake, on the other hand, is good for homemade DVDs. But you can use it together with MakeMKV to re-encode the MKV files sfrom MakeMKV to a smaller, more manageable format, namely, MP4. 

You can use both DVD rippers on the latest macOS. They're a great place to start. That said, if you find yourself wanting more features—maybe a faster workflow or more options for subtitle and audio tracks—there are more https://www.macxdvd.com/mac-dvd-video-converter-how-to/rip-dvd-free-mac.htm, just check for more options.