You always want to do research on publishers and literary agencies before you query them. There are multiple ways you can do that, for one (this is what I do 'cause I go in the bookstore "A LOT") you can look at the books that they've sold, or are representing. If you reccognize one as a best seller than you should go for it! Another way is you can Google them, I'd suggest both if you're just starting out.
But anyways, here are two publishers that are accepting submissions.
Send some submissions!!! Take a chance, you'll never know!
And now a warning. I recently sent a manuscript submission to Dorrance Publishing without researching them and found out that they're a big, fat phony publisher. They're just out to get your money. So stay AWAY from them!
See? This is what happens when you don't research a publisher. You can get stuck with someone that's out to get your money and won't do anything to help premote your book, or is just a bad publisher. Watch out for this stuff!!!
Here's a link for the different types of publishers: Types of Publishing Companies