The three answers above me pretty much cover everything.
Kyxsune's approach will be a lot more viable once Domain and Settlement Selection comes and passes.
Ilyria has given you all the links for the starting points in all the Kingdoms.
Kambien has given you an alternate approach of picking community first, and then tribe.
My 2 cents
I would pick the community first and then worry about the tribe selection. For me anyway, what is going to keep me engaged with the game is the community I am part of.
If I had picked based on tribe preferences then I wouldn't even be in the same Kingdom, let alone the County I am in. Frankly I would be less active in the forums, and less looking forward to the game. Users preference though of course :P