I want to be more dominating for my wife

So recently my wife and I have been practicing ethical non-monogamy. I’m exploring more of my queer tendencies, while she has expressed a thorough interest in subbing and is talking to a few doms right now.

I have zero qualms with the relationships she’s formed with her doms, however I can’t help but feel like I’m missing out!

For some context I’ve grew up with a funky relationship with sex, lots of shame wrapped up in it that I really want to put the work into processing, but that might not really be here nor there. My queerness is wrapped up in that because by the time I truly became fully comfortable with being myself I was married.

My wife and I have a great sex life, in fact since entering ENM we’ve been having even more sex and it’s lovely. However, I want to explore so much more. Also, I have in the past dabbled with bondage and some dom play, it was fun! But I lack confidence.

Anyone have any good sources of literature or good resources for kind of developing a bit of fluency in this? I don’t necessarily want to act as a full fledged “dom” right off the bat and I feel like she’s communicated her needs well. I just want to be able to pursue a more dominating role in bed and develop some confidence when I do it.

Also, maybe some insight in to “brat taming”? My wife likes being a good girl but has said she can experience moments of challenging and brattiness, wanna be able to overcome that. Many thanks for any advice!