https://smile.amazon.com/Paper-Mate-Medium-Assorted-Colors/dp/B000J09CO6
They are similar to the fine point sharpie but the pen shape just feels better for every day writing.
I love the G2s and use them almost exclusively. I dabble between the 5s and 7s. But sometimes I prefer a different feel, and so my second go-to pen is the Paper Mate Flair (marker-like pen).
http://www.amazon.com/Paper-Mate-Point-Guard-Porous-Colored/dp/B000J09CO6