The only way I recommend performing cricothyrotomy since 2011 is the Bougie-Aided Cricothyrotomy
Here is an actual Cricothyrotomy
My friend Yen made this cheat sheet for bougie-aided cric
For historical purposes only, here is my video on performing open cricothyrotomy in 3 situations: with a trach set and an assistant, with a trach set when alone, and when you only have a scalpel.
I did a podcast on cricothyrotomies
and then I debated Minh Le Cong on Needle vs. Knife for surgical airways
My friend Ram Reddy has a bunch of great videos expanding on this topic