I’d say don’t advertise yourself on other people’s videos or content cuz that definitely comes across as annoying. If you have social media’s maybe create a second account about your gaming and you can post stuff there about it. Idk what platform your playing on but on Xbox you can write something about your channel or stream in your bio and you can probably do this with your PlayStation or steam account too. As far as getting viewers to like you I’ve always enjoyed interactive streamers who play with their viewers and communicate with them. I don’t have a yt account but I’d sub if I did. Hope this helps! Also for content maybe if you like editing try making a montage. A good montage is super satisfying to watch.