I was just about to ask you the same thing! What have you been itching to start or try? I'm open to anything, as I get inspiration from others and it usually sparks ideas.
One I've been wanting to try (eventually) is something along the line of "questionable life choices". Humans spend an enormous amount of time and energy ruminating back and wondering about the paths in life they did NOT take rather than appreciating and working with the one they did take. I'd like to run with that psychology a bit and make a series about those hard life choices, the difficult forks in the road that change the course of our lives forever.
"Make easy choices, you'll lead a tough life. Make the tough choices, You'll lead an easy life."
I'm not sure this is something you'd be interested in, as I'm not 100% all of it could be kept PG, but I'm sure a great portion of it would. I like to keep almost all my stuff clean (or as clean as possible), as it's better for a wider audience and being shared.