For a monk, the 4 best weapon combinations are:
*note* all the halves recharge/caste are healing prayer spells.
Max healing rod req 9 healing prayers (can be crafted in a weapon crafter by the name of "suki" in the bukdek byway.)
+5 energy
halves skill recharge 20% chance
healing anhk offhand req 9 healing prayers + 12 energy (can be traded at collector either in desert outside of augury rock (5 hydra claws, or in "snake dance" in the southern shiverpeaks, needs 12 sired ribcages from flesh golems)
halves skill recharge 20% chance
halves casting time 20% chance
or
Max healing rod req 9 healing prayers
+5 energy
halves skill recharge 20% chance
healing anhk offhand req 9 healing prayers +12 energy
halves skill recharge 20% chance
healing prayers +1 (20% chance)
or
Brohns staff:
max green (dropped by brohn stoneheart in sorrows furnace) req 9 divine favor
+10 energy
halve skill recharge 20% chance
reduces bleeding on you by 20%
+30 health
+30 health
or
The ScarEater:
max dmg, green dropped by a gaki in the echovald forest req 9 divine favor
+10 energy
halves skill recharge of healing 20%
halves caste time of healing 20%
+30 hp
+30 hp