If you wanna stick with a somewhat similar move set give Rivers of Blood a try for massive bleed potential. Hand of Malenia also enables some extreme health regen with Waterfowl Dance and the right talismans.
I really like the Swordspear because it's a halberd class with a move set very similar to a greatsword. I just wish it had a thrust attack so you could attack with your shield up. I'm thinking about leveling one of the heavy thrusting swords to try that out.