Well, there's Juyo and Ataru. Ataru was favored by Anakin.
yes, in his younger years Obi-wan favored Ataru before adopting soresu as his primary stance. Obi-wan has demonstrated a proficency in just about every form of combat though, which is part of what made him such a great jedi and general during the clone wars.
there is also vaapad [Juyo variation developed by Windu], but only strong willed jedi would be taught that, due to how close to the dark side it takes you.