Stigmas in Haramel, Nightmare, Steel Rake?

I got stigma in haramel from normal mob back on day #1 so unless they changed it, still somewhat worth farming them

is there a place where i can see what stigmas can drop in what instances? i heard that some of stigmas drop only from specific bosses

for most stigma, it's bosses +/- 1 lvl around the stigma lvl and open world (theobomos/brusthonin)

you can search the NPC from which they drop on aioncodex (for most stigma, not all)

exemple:

(scroll down on webpage, "Dropped by NPC")

Earth's Wrath I > Nochsana Boss + some random mobs on other maps

Earth's Wrath II > some mobs in fire temple + eltnen/heiron/belu/morheim

Sage's Wisdom I > not indicated, but mine was looted in fire temple

Noble Grace I > steel rake