Hi metalcherry,
I'm glad I came across you post. I have a hard time finding monologues as well. I'm also a beginner as well. From your post I gather you're interested in monologues from plays or at least looking for monologues from plays. In this case, I have just searched for monologues form plays on google and have found some nice monologues for women.
I know what you mean when you mention that is hard or a beginner to choose the right monologue. For instance, I've done some Shakespeare monologues, but I'm really interested in film. It is just very hard for me to find a monologue in my age range (20s-early 30s) that's not from an airhead (for lack of another word).
Here are some sites:
The Monologue Database: Monologue Suggestions for Actors William Shakespeare: Monologues
I hope these sites helped. I'm sorry I don't have any actual suggestions for you. Keep in touch.
Bri