Young Battlefield (Recommended)
The world I want (recommended)
Thank you, Dido.
Waldfield
If you become the wind.
Fly higher
Invisible wings
Fahrenheit and Her I Have My Youth (Recommended)
Rainbow smile
snail
Butterflies can fly
Hand in hand
you raise me up
Wings of love
Let the world full of love
Tomorrow will be better
Classical pop chorus with boys and girls is also suitable.
For reference, I hope I can help you.