This site has an abundance of fonts and provides good viewing samples so you can see what they look like. They are all free and I've never had a problem with them.
http://www.1001freefonts.com/
To install a font on the PC, simply drag the unzipped font file into your Operating System's Fonts folder. You may have to restart Photoshop Elements to make it recognize the newly installed font, depending on the version you are using and your OS.
If you are on a Mac, I can't help with font installation.
I recommend that you also copy the font file to your project folder, create a subfolder for fonts you use, to ensure that the font stays with the project if you move it to another machine.