This is pretty simple as far as datapacks go - just a list of other items that restore thirst, sorted according to Dehydration's logic for hydration, plus adding a few extra hydration tiers where appropriate to provide for more late-game thirst management.
Mods currently in the list:
Adorn
Archon
Better End
Better Nether
Bewitchment
Bewitchment Plus
Bosses of Mass Destruction
Brewin' and Chewin'
Cinderscapes
Cultural Delights
Deeper and Darker
Ecologics
Eternal Starlight
Farmer's Delight
Farmer's Respite
Gofish
Immersive Weathering
Meadow
Mythic Upgrades
Oh the Biomes You'll Go
Paradise Lost
Shroom Dealers
Snowy Spirit
The Bumblezone
Twilight Forest
Vinery
XP Obelisk
XP Obelisk Additions