This is the best agile umbrella I was able to find.
What I like about this umbrella is the idea that scrum is just one of many, many things you can do to increase a team's agility. Of course, scrum itself is a subset of the items under the umbrella. I think we all have a tendency to lean towards scrum because that's what we've all been trained in. Because to train agility without a strict framework like scrum would be too abstract. There's just too many facets to agility, and how do you train "courage" and "simplicity". And what does "flexibiltiy mean? Scrum is a nice subset that can get teams started.
That said, we've all tested the waters and we have enough experience now to understand more than we would have before training / experimentation in our own groups. Just focus on a few of the things under the umbrella and consider if your teams are using any of them.
Same with the principles, I think we all read through them before we knew anything. But now that we know more, now that we've "tried agile", reading through them again can be an eye opening experience.
(I'm just sharing some of the things I'm currently thinking about, I hope you all can find some use in it.)