How to find a YouTube niche by hunting small-channel outliers

1. Why outliers beat keyword volume

Search volume tells you people are interested in a topic. It does not tell you whether a new channel can get views there. A big channel with 2 million subscribers getting 500,000 views is normal; a channel with 4,000 subscribers getting 500,000 views is a signal. That second video is an outlier: the platform pushed it far beyond the channel’s existing audience.

When several small channels in the same topic produce outliers in the last few weeks, the topic has demand that existing creators are not covering. That is the definition of an open niche.

2. Three numbers to compute for every video

Outlier multiplier = video views ÷ the channel’s average views per video. Above 3× is interesting, above 10× is strong. Using the channel’s own average (not its subscriber count) avoids being fooled by channels whose subscribers are inactive.

Views per day since publishing. A video with 200,000 views in 5 days is moving faster than one with 600,000 views in 2 years. Recent velocity matters more than lifetime totals.

Freshness: how many of the outliers were published in the last 30–60 days. Old outliers show the topic worked once; fresh ones show it still works.

3. Step by step

1. Start broad: type a topic in your language (“budget travel Japan”, “desk setup”, “cat health”). Search YouTube and Shorts in the market you want to reach — results differ a lot between the US, UK, Germany or Japan.

2. Sort by outlier multiplier, not views. Ignore any channel above roughly 500,000 subscribers for now — you are looking for proof that small channels can win.

3. Read the top 10 outliers as a set. Are they the same format (list, story, test, tutorial)? The same angle? Write down the pattern, not the titles.

4. Check competition: how many channels publish on this topic every week, and how big are they? Many big channels uploading weekly means you will fight for every impression.

5. Decide with a rule, not a feeling. For example: at least 5 outliers above 3× from channels under 100,000 subscribers in the last 60 days, and fewer than 10 large channels posting weekly.

4. How NicheLens does this for you

NicheLens runs the same steps across YouTube, TikTok, Douyin, Xiaohongshu and nine more platforms at once, computes the multipliers against each channel’s own baseline, and turns them into a 0–100 Niche Score split into Demand, Small-channel opportunity, Freshness and Competition. Every part of the score is a formula on real numbers — the same data always gives the same score — so you can see exactly why a niche is green or red.

5. Common mistakes

Copying the outlier video. The pattern is the asset; the video itself belongs to its creator. Make your own version with a different angle, examples and script.

Judging from one outlier. One viral video can be luck. Look for several across different channels.

Ignoring monetization. Some topics get views but low ad rates or are risky for ads (medical claims, re-uploaded clips). Check the RPM range for your target country before committing.