A set of coli blades would do you good. You don't even need "great" blades to get by pretty well.
As for grinding at 128:
- Red/dark ninjas - solo/party
- Chibi orions (level 140 xenadia - chibi orion room, have someone ir/cannon you to the field of the holy knight save for easy access) - solo only - 30+ accuracy recommended
- Fenrirs (asgard - hanger, ascend bifrost or get ir'd to the save for easy access) - recommended party but can be solo'd - 40+ accuracy recommended
- Inter colo half or full - full will be best xp but 5th tier is highly recommended or else your party will be destroyed in the second half - party only (obviously)
Inter full is the fastest possible xp at your level but the draw is you're gonna need to get 5th tier, which many argue bladers need anyway for their third job quests.