Kelly Clarkson -because of you Michael buble-lost Linkin Park- in the end/numb Ed sheeran (a few songs) Green day -boulevard of broken dreams/ 21 guns Asking alexandria-moving on The script-flares Some taylor swift Adam lambert -whataya want from me (and other songs) Adele - someone like you, chasing pavements, turning tables, hello Eminem-beautiful, beautiful pain, space bound
And there are more but those come to my mind right now
I tend to listen to sad songs, to maybe cry and get over it.
As for happy songs there are many, in general that have a fun beat :D
There's also: In Corolla Maybe, Sprout Wings Balance Fault Lines So Desperate Tianchi Lake Peacocks Brandy Let's Go See America Right Song For Lonely Giants Hardpan Song Color In Your Cheeks 1 Samuel 15:23 Psalms 40:2 Hebrews 11:40 Age of Kings Prowl Great Cain Satanic Messiah
and finally, the greatest song ever: Wizard Buys a Hat
As for me, I have a "reset song" that I think of whenever I'm really down, or have another undesirable song in my head, or the inner voice is negative, etc. It's "The Kiss" by the Cure, especially the lead guitar line:
Future - Jealous Jimi hendrix - Hey Joe Danzig - Mother Megadeth - Wake up dead Biggie Smalls - Party and Bullshit Kid Cuddi - Day n Nite (crookers remix) Led Zeppelin - Since I've been loving You Santana - Soul Sacrifice Metallica - No Remorse Led Zeppelin - Heartbreaker The Flat Duo jets - Crazy Hazy Kisses Elvis Presly - Trouble Johnny Cash - Thirteen (Danzig cover) Dj Kalid - Taking over Dead Sara - Weather Man Jack White -
OP you listed Megadeth :3. I listen to In Flames, a lot of their songs have melodic dark undertones that really helped me when I sunk into depression. I still feel down sometimes, and they are always there.