Ritual Spells

A ritual spell can be cast following the normal rules for spellcasting, or the spell can be cast as a ritual. The ritual version of a spell takes 10 minutes longer to cast than normal. It also doesn’t expend a spell slot, which means the ritual version of a spell can’t be cast at a higher level.

Level 1

Ceremony
Comprehend Languages
Detect Magic
Find Familiar
Guiding Hand
Identify
Speak with Animals
Tenser's Floating Disk
Unseen Servant
Wild Cunning

Level 2

Augury
Beast Sense
Gentle Repose
Locate Animals or Plants
Magic Mouth
Silence
Skywrite
Wristpocket

Level 3

Feign Death
Leomund's Tiny Hut
Meld into Stone
Phantom Steed
Water Breathing
Water Walk

Level 4

Divination
Widogast's Vault of Amber

Level 5

Commune
Commune with Nature
Contact Other Plane
Rary's Telepathic Bond

Level 6

Drawmij's Instant Summons 
Forbiddance 

Spells by Class:

Artificer Spells
Bard Spells
Cleric Spells
Druid Spells
Paladin Spells
Ranger Spells
Sorcerer Spells
Warlock Spells
Wizard Spells

Spells by School of Magic:

Abjuration Spells
Conjuration Spells
Divination Spells
Enchantment Spells
Evocation Spells
Illusion Spells
Necromancy Spells
Transmutation Spells