You're totally good to share/link to substitutive, worthwhile, on-topic, newsworthy or otherwise timely content you've created that's hosted elsewhere. Calls to action are where the line is drawn right now—telling people to go subscribe to a channel/follow an account/engage in a discussion elsewhere/etc. If it feels like an influencer promo, it's probably a rules violation. If you're just sharing relevant, useful, informative, unique content you created, there's absolutely nothing wrong with that at all.