Idk about best but this is one of the more impactful songs for me that’s very lyrically strong:

Milo - An Encyclopedia

https://www.youtube.com/watch?v=KThyMAsEnZQ

Specifically the verse leading up to:

Darrien Hunt cosplaying was killed for his hobbies
And I love Mugen too
And that's the thing
I love Mugen too

(in reference to the character Darrien was cosplaying as)