Universal
J.HP, 43LP/C.HK - Works on all combo-able characters. The classic jump in, sweep combo that's rewarding and easy. If you haven't learnt character specific stuff, stick with this.
Near Universal
S.LP/C.LP, 43LP - Works on all combo-able characters except Beans. When in doubt, this should be your bnb. Not the highest damage up front, but it does give a good knockdown.
J.HP, S.LP x 3, 43LP - Works on just over half the cast. Very high damage combo that should be a mainstay of any Shotos player wanting to be rewarded properly off their hits.
Character Specific
6HP, 9, 43LP - Unblockable setup on Dolf. Very important, this gives the Shotos an excellent punish game in a tough matchup.
J.6HK, 43HP - Unblockable setup on Dolf off air throw.
J.HP, 6, C.LP, 6, C.LP, 43LP - Replacement for the S.LP loop on Kotono. C.LP doesn't whiff on Kotono's crouch, so it works here.