Precise Dagger is the standard option and cheapest to get.
For a replacement you choose between:
Raid Captain-> It's the most expensive option and requires high uptime for ~1% damage gain if compared to the other options.
Hit Master-> Moderate cost, with the only downside being no effect on ultimate damage.
Stabilized Status-> It's the cheapest option, but requires you to stay above 65% HP!
Ether Predator-> Only acceptable for progging at max rank! (This can also replace Cursed Doll instead)
Propulsion -> Not recommended! Unlike Raid Captain it doesn't provide any damage if spacebar is on cooldown. Use with caution!