SEO Optimizing YouTube Channel

I need an Expert for YouTube to check my YouTube Channel for YouTube SEO, Optimizing existing Videos, Texts, Titels, adjustments and implement them operational. The Channel is in German. After this Project further cooperation for pushing the YT Channel is optional. Topic of the Channel: Personal development, Coaching, Business combined with Spirituality. Content in German.
At the Moment: 450 follower, 55 Videos online, 50.000 views in total