Ask HN: what kind of ideas can get you into YCombinator?

YC is more interested in people than ideas, but these might help:

Ones which solve real pain points.

But it's the wrong question to ask, YC heavily focuses on team over idea, the idea is a validation of the team as much anything else (i.e is the team smart and capable of thinking deeply about a space).

But does it really matter if my idea is something not specifically SAAS?

No, check out the current W13 batch. Not all are SaaS. Some are hardware. But they're real products that people want to use, and I'm assuming the founders are pretty bright and promising.

The strength of the team matters 5x more than the idea. The evidence for this is the fact that YC let(s) in teams that have no idea (not sure if they do this anymore).

That being said, having a "good" idea does help.