For 70s/80s (aka my favourite decades of music) some more low key songs I like are:
Breakfast at Tiffany’s by Deep Blue Something
Forever in Blue Jeans by Neil Diamond
Free Fallin’ by Tom Petty
Diary by Bread
Love Grows (Where the Rosemary Grows) by Edison Lighthouse
Total Eclipse of the Heart by Bonnie Tyler
Brown Eyed Girl by Van Morrison
life in a Northern Town by The Dream Academy
For more upbeat I recommend:
Born in the USA by Bruce Springsteen
Immigrant Song by Led Zeppelin
Jessie’s Girl by Rick Springfield
Karma Chameleon by Culture Club
The Grease Soundtrack
I Love Rock & Roll by Joan Jett & the Blackhearts
Kids in America by Kim Wilde
Dancing Queen by ABBA
Mamma Mia by ABBA
Literally anything else by ABBA
We Will Rock You by Queen
Come On Eileen by Dexys Midnight Runners
December, 1963 (Oh What a Night) by Frankie Valli & the Four Seasons
We Built This City by Starship
Bohemian Rhapsody by Queen
Hotel California by The Eagles
Dancing in the Dark by Bruce Springsteen
No Sleep Till Brooklyn by the Beastie Boys
Old Time Rock and Roll by Bob Seger
Sweet Child O’ Mine by Guns N’ Roses
Artists in General:
ABBA
Nirvana
Bruce Springsteen
U2
Elvis
Billy Joel
Queen
madonna
Kiss
Guns N’ Roses