Hi anonymous husband,
I can understand her being reluctant to read things but also if it’s something you’re really into then it’s worth her getting educated about it. However it’s a bit of a minefield, I know. I’m kinky as fuck and stuff I see in my feed every day still shocks me, and I know even mine has lots in that would throw people off.
My best advice is to create a shared, private tumblr blog and YOU curate four or five things that you would like her to read, some advice, recommendations on how it helps intimacy, and maybe a few cute captions that aren’t too explicit. Ask her to try that, see if she likes it, and if so, do it some more, no pressure but just a little message sometimes saying you blogged things for her.
Then if she gets used to that, she can subscribe to a few of the safer blogs on here and maybe add some she likes for you!
Try my advice and safe tags (below) for some from this blog