Best way to Drop Tombstones/after GC Grace

[Madhu-Nosql]

I got few ways to Drop Tombstones- Chos Monkey/Zombie Data mainly to avoid Data
Resurrection (you deleted data it will comes back in future)

I am thinking of below options, let me know if you have any best practice
for this

1.using nodetool garbagecollect
2.only_purge_repaired_tombstones
3.At Table level making GC_Grace_period to zero and compact

Thanks,
Madhu