Just some songs that I thought fit...
"I found" - Amber Run (featured in pt 1 chapter 9)
"Take me home" - Jess Glynn
"She" - Dodie
"I think I'm in love" - Kat Dahlia
"Us" - James Bay
"Control" - Zoe Wees
"Human" - Christina Perri
"It's ok" - Tom Rosenthal
"Till forever falls apart" - Ashe, FINNEAS
"Lovely" - Billie Eilish, Khalid
"Black and White" - Niall Horan
"One last night" - Vaults
"Walls could talk" - Halsey
"Titrope" - From the greatest showman
"Our last summer" - ABBA
(The link to the playlist is in my profile description)