All of today's tangle patterns are from the creators of Zentangle. I found step-outs or video tutorials for some of them but I had to guess how to draw some of the others by looking at examples online.
"Ambler" is a variation of another official tangle called "Emingle". The difference is that "Emingle" is drawn on a grid. Ambler is drawn as a wandering (ambling) ribbon. There is some info about this pattern HERE at TanglePattern.com, but no step-out is available. I managed to find one somewhere on Pinterest but there was no link to the source. It should be easy enough to figure out without a pattern though.
"Crazy Huggins" is a free form version of the grid tangle called Huggins. Molly shows how to draw this tangle in THIS video.
The step-out for "Hibred" came from THIS Zentangle newsletter. Pattern-Collections.com has a couple of video links HERE for this pattern.
"OOF" (Out of Focus) is also from a Zentangle newsletter. Click HERE to get the step-out. Melinda Barlow CZT has a video tutorial HERE.
I wasn't able to find an official step-out for "Pinch" but I figured out how its drawn by searching for examples on Pinterest. There is a video tutorial HERE by Ellen Wolters.
There is no published step-out for "Purk" either but I was able to learn how to draw it by watching videos and looking at examples on Pinterest. There are a few video links HERE at Pattern-Collections.com. There is also a brief video of Maria Thomas drawing Purk HERE.
"Zenith" does have a published step-out HERE in one of the Zentangle newsletters. You'll also find a video tutorial HERE.
There is no published pattern or any videos that I'm aware of for "Y-Not". All I could find online were some very sketchy diagrams and a few examples where people had used this tangle in their Zentangles. After drawing my example, I decided that I probably won't ever draw it again. I only tried it to see if I could figure out how to draw it. Obviously I was successful but only by drawing it on a rather elaborate pencil grid.