@utopify_org Hey, you can publish on both; and Youtube, and Peertube. Peertube admin panel can re-upload a Youtube video with the full description and all by just pasting the URL; so it's not a big effort to mirror a channel and propose an alternative, that's what I do.

To meet your audience, many 'tools' exists: being active and helpful on communities (good old forum, IRC/Matrix chat channels), using hashtags. And just be yourself and focus on your quality. That should do it 🙂