My favorite ending song is the fire force song “veil” by Keina Suda.
Dakara Hitori Ja Nai
IDK maybe Anohana's ed or Kyoukai no Kanata's
There’s a few but the first that came to mind was L.L.L from Overlord
I don’t have a definite favorite but at the moment this is one of my favorites:"For The Love of Life" by David Sylvian (1st ed for Monster)
Full metal alchemist brotherhood ed 4 is the best
What do you think?