How to find an undersaturated YouTube niche in 2026 (a data-driven method)

"Find an undersaturated niche" is advice everybody gives and nobody explains. Here's the definition we use:

An undersaturated niche is a topic where viewers want more videos than creators make.

You can't see that directly. But you can see its consequence: small channels in that niche get far more views than usual, often. When the supply is short, the algorithm sends viewers to whoever publishes, even a channel with 2,000 subscribers.

The signal: small channels breaking out

For each sub-niche, we measured two things in the Returbe database (English channels, 1,000–100,000 subscribers, long-form videos, last 90 days, October 2026):

• Active small channels: fewer = less competition.
• Breakout rate: the share of their videos with 3× or more the channel's normal views. Higher = demand isn't met.

Across all niches, the average breakout rate is around 13%. Here are the sub-niches well above it:

Three standouts:

• Nutrition & weight loss: more than 1 video in 3 breaks out, with only 20 active small channels.
• Geography and company stories: faceless-friendly documentary formats (maps, archives, narration) with a 30% breakout rate.
• Police footage: more channels, but the median video gets 39,000 views, the highest in the table. Demand is huge.

And the opposite: programming has a decent breakout rate but a median of 700 views. Open, but small. That's why you need both numbers.

The 6-step method

1. Start from a category you can make videos about

You'll publish dozens of videos, so pick something you can sustain. Then go down one or two levels: not "history", but "history of companies" or "geography explained".

2. Count the active channels

Search 5 keywords of the sub-niche, sort by upload date, and list the channels that posted in the last 3 months. Under 20–30 active channels is a good sign.

3. Check if small channels win

Among those channels, how many are under 10,000 subscribers and still get views? If only big channels show up, the niche is locked.

4. Measure breakouts

For the small channels, find videos with 3× or more their channel's median views (how). If several small channels had outliers in the last 90 days, the demand is there.

5. Check the demand is big enough

Look at the median views of the niche. A 40% breakout rate on videos getting 300 views is still 300 views. Our rule of thumb: a median of 3,000+ views for small channels means a real audience.

6. Check the money

Compare the niche's RPM (table by niche). Health, finance and tech pay several times more per view than gaming or entertainment.

Signs a niche is saturated

• The first page of search is only channels with 500,000+ subscribers.
• Small channels post regularly but never break out.
• Every video uses the same title and thumbnail formula.
• Big channels publish the same topic within days of each other.

In our data, gaming is the clearest example: 647 active small channels (5× more than most niches) and a 9.9% breakout rate. See the full ranking by category in YouTube niches with low competition.

Undersaturated today, crowded tomorrow

Openings close. When a sub-niche starts breaking out, other creators notice within weeks (often by finding the same outliers). Two habits help:

• Check monthly. Watch the breakout rate and the number of new channels in your niche.
• Follow the fast growers. Small channels growing fast are the first sign that a sub-niche is opening, or filling up.

Methodology

• Source: Returbe database, October 2026.
• Videos: long-form (no Shorts), published 7 to 90 days ago, from English-language channels with 1,000 to 100,000 subscribers.
• Breakout rate: share of videos with 3× or more the channel's median views.
• Sub-niches: Returbe's niche classifier; only sub-niches with 60+ videos in the sample are shown.
• Limits: "small channels" counts channels Returbe tracks, not every channel on YouTube. Compare sub-niches with each other rather than reading the counts as absolute.

FAQ