Your best bet is to add the link in the video description or the pinned comment. Most platforms like YT allow links in the description, and that’s often the most visible place for people to click after watching the video. You can also pin a comment with the link, which helps keep it at the top of the conversation. If you're worried about getting flagged or banned, it’s always a good idea to be subtle and avoid using spammy wording around the link. A simple, straightforward approach with a clear CTA is key to driving traffic without raising any red flags. Make sure your link is easily accessible and not buried so viewers can find it without hassle.