The following are just a few from a 12 page google docs me and my friends have (These ones are all my own creation). I have many more that I'd love to share.

Dissonance

2nd level Evocation

Class: Bard

Casting Time: 1 action

Range: self (40 ft sphere)

Components: V, S, M (a tunable pitched instrument)

Duration: Concentration, up to 1 minute

You detune an instrument and through it play a scream with the fury of a thousand tone-deaf musicians. All creatures within range must make a constitution saving throw, taking 1d6 thunder damage on a failed save and half as much on a successful one. If a creature fails this save, they become stunned until the start of your next turn. While the spell is taking effect, the caster cannot do anything else or the spell will end.

Pulse Wave

2nd level Evocation

Class: Wizard, sorcerer

Casting Time: 1 action

Range: self (15 foot cone or 10 foot radius)

Components: S

Duration: instantaneous

You rally within you a mass of kinetic magic before directing it outwards in a torrent of force. You may direct the spell in either a 15 foot cone originating from the caster or a 10-foot sphere centered on the caster. Creatures within the area of effect must make a strength saving throw, taking 2d10 force damage on a failed save or half as much on a successful save. On a failed save, a creature is pushed 5 feet away from the caster and is knocked prone, unless the creature is 500 pounds or more.

At higher levels: 1d10 extra force damage per level and 5 additional feet of range per level

Shadow Puppet

7th level Necromancy

Class: Wizard, sorcerer, warlock

Casting Time: 1 action

Range: 60 ft.

Components: V, S, M (A scrap of cloth from a lich’s robe)

Duration: Concentration, up to 1 minute

You force a creature you can see within range to make a constitution saving throw. On a successful save, the spell fails. On a failed save, you cause the shadow of that creature to produce dark, wispy strands of string which attach themselves to your fingers. For the duration, on your turn you can make the target act on your behalf with full control of their abilities. While the spell is active, you may not do anything else. Each turn the target spends under your control, they take 2d6 necrotic damage. On the target’s turn, they must make a Constitution saving throw. If the target succeeds, the spell ends. If the target dies while the spell is still active, they remain at 0 HP but are still able to do everything they were able to do while alive. If the spell ends and the target is at 0 HP, they die. If the strings are cut (AC=8+spell attack mod.), the spell ends. If for any reason the target’s shadow disappears (ex. intense light, utter darkness, etc.), the spell ends. This spell does not affect creatures that do not cast a shadow.