These are the only songs i could come up with at the moment, so I apologize if it doesn't really fit the character ^^;

Tanjiro

Make you mine
PUBLIC

Sex
EDEN

Two Birds
Regina Spektor

10,000 hours
Dan + Shay, Justin Bieber

I love you 3000
Stephanie Poetri

Home
Seventeen

All night
The Vamps

Dancing with a stranger
Sam Smith, Normani

Nezuko

I Spy
KYLE

Run Free
Deep Chills

Someone you like
The girl and the dream catcher

Death bed (coffee for your head)
Powfu

Love like you
Rebecca Sugar

IFLY
BAZZI

Lullaby
GOT7

Zenitsu

Just the way you are
Bruno Mars

Sugar
Brockhampton

Complete
ONF

on/off
ONF

Energetic
Wanna one

Send my love
Adele

Supalonely
Benee

Inosuke

Backyard boy
Claire Rosinkranz

Some
Bolbbalgon4

Hobgoblin
CLC

Hot girl bummer
Blackbear

Toothbrush
Pentatonix

Clap
Pentagon

Adore you
Harry Styles

Giyuu

Sweater Weather
The Neighbourhood

No Idea
Don Toliver

Bad things
Camila Cabello

Don't wanna cry
Seventeen

Ride it
Regard

SAD!
XXXTENCION

What am I
Why Don't We

3:15
BAZZI

Shinobu

Honey lavender
ievan

Upside Down (acoustic ver)
JVKE

Last night
Lucy Spraggan

Like that
Doja Cat

STUPID
Ashnikko, Yung Baby Tate

Location
Khalid

Muichiro

Rules
Doja Cat

Youth
Troye Sivan

Shoot me
Day6

Teenager
GOT7

If you do
GOT7

Daisy
Ashnikko

Do Re Mi
Blackbear

Kanao

Ya Ya Ya
MXM

On my mind
Maximillian

Y U Gotta be like that?
Audrey Mika

Love Story
Taylor Swift

Brave Enough
Lindsey Stirling & Christina Perry

In the name of love
Bebe Rexha, Martin Garrix