What is the best way to request a video topic from a Youtube channel?

Suppose you want to request a Youtube content creator to make a video on a certain topic. Assuming they haven’t provided an e-mail on their channel on which to contact them, what is the best way to make a request and stand a chance of being noticed?

Should you just pick one of their videos (at random or perhaps a recent one, or one somewhat related to your topic), put the request in that video’s comments section, and hope that you will be noticed? Or is there a better way?

Worth a try. They often read their comments, unless they are regularly overwhelmed (if they have a high follower count). I’d go for a recent and related video of theirs. Anything older than a month is probably not going to be responded to.

See if the same content creator has an Instagram, TikTok or Facebook site. They might have contact info at one of those. If not, yes, post to the comments section.

Note that nowadays many content creators have Patreons where subscribers of a certain tier get to suggest or vote on topics. Which is less of a suggestion that you become a Patron and more a warning that they may take less notice of suggestions in comments.

Doper @Mangetout actually has a rather big YouTube channel, maybe he can offer some insight.

Yeah, first, check if they have any socials or contact methods linked in their channel page.

Failing that, you could try commenting on a video - maybe pick something at least tangentially related to your request so your comment doesn’t look weird in context to the general public, but if they’re reading comments, they will be reading the consolidated comments feed in YouTube Studio, which is sorted by most recent across all videos, so if they’re looking at comments, they won’t miss it just because it wasn’t on the newest upload.

Some youtubers don’t read the comments at all though. Also it’s worth noting that people with a popular channel may already be inundated with requests and suggestions, so a) try not to make your request sound like a demand† and b) set your expectations at a reasonable level

† (this happens more than you might imagine - I get a lot of people saying “You should…” and “You need to…” and sometimes “Please can you…” and “When will you…” - they mostly don’t indicate any real ‘demand’ as such and they just really are enthusiastic “hey, I had an idea!” posts, but they can land badly at the receiving end).