Sorted the Tasks from highest to lowest Adventure EXP:
1) Archon Quests
Advancing in the main story is what gives you the most Adventure EXP.
2) All 4 Comissions (Daily)
Give between 175 and 250 Adventure EXP + 500 for claiming the reward for completing all 4 Daily Quests
3) Legendary Quests
4) World Quests
5) Chests
Common from 10 to 20 EXP, Sophisticated from 20 to 30 EXP, Valuable from 30 EXP, and Luxurious from 30 to 60 EXP.
To open all chests: https://genshin-impact.fandom.com/wiki/Chests#Current_Count
Here you will be able to find out in which areas you have unopened chests (comparing the data they give you with your Achievements), and in the section: References, there is a link to a route or tutorial for each area, which indicates all their locations.
6) Spend Original Resin
Every time you spend this resin, either to claim rewards by killing Boses, Ley Lines, in Domains, they will give you 50 adventure experience points for every 10 Original Resin used.
* 50 AR EXP is awarded for forging six Mystic Enhancement Minerals using three Magic Crystal Shards and 10 Original Resins at a Blacksmith.
* 100 AR EXP is awarded when claiming Ley Line Blossoms and Domains rewards using 20 Resin. Using a Condensed Resin instead of an Original Resin will grant 200 AR EXP instead.
* 200 AR EXP is awarded when claiming rewards from Normal Bosses using 40 Original Resin.
* 300 AR EXP is awarded when claiming rewards from weekly bosses, regardless of whether 30 or 60 original resins are used.
7) Adventurer's Handbook
For each completed Adventurer's Manual investigation, the player will receive 100 AR EXP.
However, the reward for completing each chapter does not grant any AR EXP.
8) Offering Oculi
Offering Oculi to their respective Statue of The Seven. Each type of statue provides a maximum of 2160 Adventure EXP.
9)Unusual Hilichurls
For every Unusual Hilichurl defeated, the player will receive 18 AR EXP.
10) ***0
After reaching Adventure Rank 60, each additional point of Adventure EXP earned is converted to MORA at a ratio of 1:10.
Information obtained from FANDOM.
I invite you to my Genshin Impact Guide for beginners (or not so much),:
https://www.hoyolab.com/article/4559890
I hope you have been helpful. <3
