I suggest the 67 marker test. If you know your Haplo group the
autosomal, as I understand, is unnecessary.
I am Haplo Group R1a1 - various studies show my ancestors were in
Eastern Europe or Western Asia (the Steppes) and went to the
Scandanavian countries. From there they probably went to England
and Ireland.
R1b Haplo Group (the sons of King Milesius) went to Spain and to
Ireland. Sullivans are both Groups but R1b is much larger.
Google Haplo Groups - I know just enough to be dangerous.
Family Search is a bit expensive but they notify one of matches and
the tests for a surname are available. You haven't learned much if
you have to contact every person who tests to find if you matched.
Hugh
Ea...@bellsouth.net (J. Hugh Sullivan)