I agree with iris here that we shouldn't just be feeding new players those openers that have a way higher chance of winning in certain mods as that won't properly nurture their development and it could result in dependence of those openers. What I would suggest and what I've seen before, and read and learned from, there used to be really nice interesting guides made by people like fear and toffee, like this one: https://forum.toribash.com/showthread.php?t=395422 and also this one: https://forum.toribash.com/showthread.php?t=545314 in my experience, I've personally read and learned from these when I was just starting out and information may be a little bit outdated as how we play these mods has changed in the last 5-8 years, a new guide wouldn't hurt at all. There were also video essays made by the community, but one that stands out to me the most was the one with gameplay made by moop and diamond: https://www.youtube.com/watch?v=LQxedUBTwqY this is also a good way of teaching as players get to see more about how joints work and how a pro player would move during a turn.

If anyone wants to make any updated guides or video essays or anything of the like, you're welcome to do so and I will see if there's anything staff can do to help you if you choose to do something.