So many... Only counting inserts, OPs and EDs, here are some of my favourites:

• The AoT insert songs are incredible and this suite is even better.
• Grand Escape from Weathering With You
• Suzume's title track
• unravel, as cliche as it is
• Enigmatic Feeling from Psycho-Pass
• Signal from 91 Days
• Black Lagoon's OP
• The Garden of Sinners EDs
• Land of the Lustrous OP
• Watashi Dake Yurei (the SICKHACK song from BTR).
• Original Spice and Wolf openings
• Voracity by MYTH & ROID from overlord
• Hunting Soul from Dandadan
• Might be recency bias, but the OPs from With You In The Rain and Clevatess
• Fate/Stay Night Heaven's Feel EDs by Aimer