Black Catcher, Gamushara, Black Rover, Everlasting Shine - Black Clover
Peace Sign- Boku No Hero Academia
Kaikai Kitan - Jujutsu Kaisen
Pikapika No Taiyo - Gakuen Alice
Pleasure - Fruits Basket
Sakura Kiss - Ouran High School Host Club
Hikaru Nara - Shigatsu Wa Kimi No Uso
My top fav openings changed with time, so here they are ^^
attack on titan: shinzou wo sasageyo (this has become my national anthem ngl), akuma no ko, red swan (I've seen people hating on this one and I don't see the reason why. It's a masterpiece and no one can change my mind!), jiyuu no tsubasa, guren no yumiya, boku no sensou, akatsuki no requiem
next come all of the attack on titan soundtracks! (my top faves are rittaikidou, call of silence, attack on titan, you see big girl / T:T, barricades, st hrn egt20130629, call your name, vogel im käfig, zero eclipse and ashes on the fire) All of these mean that Hiroyuki Sawano is the goat!
fruits basket: pleasure, lucky ending
haikyuu: fly high
death note: L's theme (just listening to this makes you feel like a genius lol), the world
my hero academia: peace sign (never get tired of listening to this), polaris, no.1
sk8 the infinity: infinity (oh oh let's keep feelings~)
jjk: kaikai kitan
black clover: black catcher, black rover, gamushara, everlasting shine
demon slayer: gurenge, akeboshi, zankyousanka, kamado tanjiro no uta
fullmetal alchemist: again
komi can't communicate: cinderella
it’s lonely in gorgeous by Tommy February6 it’s from paradise kiss all the songs from the artist is so good 
