I believe @edhaponik has done a few tutorials. The Bandalores instagram page had one I believe. Sorry at work and instagram is disabled so i can’t find and add the post.
Adam did this one a few years ago:
And the Fixed Friday series post about kickflips: Fixed Friday: Flip Tricks
Seems like I link it a lot, but if anyone is serious about fixed axle, the entire Fixed Friday series on YoYoNews is worth reading. Fixed Friday