Thinking back, 6w5 comes to mind.
I think this is more due to feeling that most of the other types are 'off' rather than type 6 being a good fit. (Sorry, INTP-style thinking.) See, you
1: don't seem to be very self-critical and concerned with 'rightness'
2: are helpful, but not overly so
3: don't seem particularly driven to make a name for yourself
4: not drawn to melancholy, IIRC, and not attached to identity (as an outsider or through feelings)
5: you're not a detached observer are you? You seem to like to get clear about things, but aren't driven to relate through areas of expertise.
6:
7: ehh, I see 7's as being all over the place and carefree; which isn't really what I see in you
8: this one's pretty close too, but I don't think you are as 'present' as a type 8, if that makes any sense
9: you have a bit of difficulty seeing yourself, I think (not just here; your blog too), but you tend to speak your mind; 9's are much more serene
Ok, now that I've let my initial judgment sit a bit as I went through these other ones, I think 6w5 is the best fit because you have mentioned having lots of thoughts about what you
should be doing, IIRC, and aren't so assertive and in-touch with your instincts that you can just do things and see where they lead. I think I saw a bit of self-doubt while reading your blog a while back too. On the other hand, I know you said you look to yourself for guidance, which is characteristic of 6w5 over 6w7. The pessimism that colors type 6 descriptions makes me think I've missed something though.
Hope that helps. Would love to discuss this further if you think I've misread you.