My posts on How Many Queries Does it Take both had hundreds of hits, the highest of any of my posts. You know what that tells me? That you like numbers as much as I do.
Good, because I've got some more for you.
Maybe you've sent out a TONS of queries and you feel like you've sent it to everyone. But you haven't sent it to everyone (at least, in most cases you haven't). And here's how I know.
Once again, I went back to Query Tracker. At last count, they have 1244 literary agents on their database. This is not a definitive list, but a pretty good one. I searched on agents representing the different genres and took a tally of how many are listed. (Again, not every genre is listed here. QT has more listed but I took just the more mainstream fiction genres.)
post. Disclaimer: this is not scientific, just an snapshot based on a self-reporting website). What percentage of agents representing your genre have you reached?
This of course does not mean you blanket every single agent with queries. You still have to do your homework and choose who might be a good fit. But it might give you some comfort when you think your options are exhausted. There are plenty of agents out there who say QUERY WIDELY!