Frieren’s ED is phenomenal, no arguments there. Probably one of my favorite EDs of all time. Others that come to mind for me would be:

• Hana no Tou - Lycoris Recoil
• Hikari e - Zombieland Saga
• Chiisana Boukensha - Konosuba
• Chiisana Koi no Uta - Karakai Jouzu no Takagi-san (I haven’t watched this series, but this is an incredibly famous song and this is one of my favorite versions)