Altar of Blessings: The Penitent Troll

Kulzi: Complete the [storyline=5778] storyline, starting with Loa Disturbance in Amani'zar Village.
Filo: Complete the [storyline=6055] storyline, starting with A Quiet Walk Interrupted at Witherbark Bluffs.
Mot'amra: Requires the [item=266438] from the [zone=16557] delve. Appears to be a guaranteed drop from the end chests.
Wila'ma: Reach Renown 8 with the Amani Tribe, automatically unlocked on altar after
Shadra: Complete the [storyline=5950] storyline, starting with Far from the Hinterlands at Witherbark Bluffs. Will require a run of Maisara Caverns (can be done in follower mode).
Dundun: Requires the [item=265746] sold by [npc=241928] for 1600 Unalloyed Abundance.
Puul: Requires getting an [item=263938] from fishing. Apparently can be fished in any Midnight zone from any source of water. Very low drop rate, took me from 1-250 fishing to get it.
Oe: Requires the [item=266440] from killing the world boss [npc=244424].

The Idol of Peril doesn't require pools either. I got it in open water in Harandar. It's not a high drop rate, but I picked it up while leveling fishing.

I fished for many hours, switching between zones every hour or so. Got to level 247 before Idol of Peril dropped.
It dropped for me in Zul'Aman, fishing at /way 50 43.18
It dropped in open water, not a fishing pool. The item went straight into my bags and then came up as a quest to accept.
I'm still using the 'Aqirite Fisherfriend' tool. I did not have any fishing buffs on.
Good luck fishers!