Whizbang Dustyboots
Gnometown Hero
I don't know if that's necessarily true. The philosophers of Sigil can exist independently of alignment -- and the rules about patrons and piety in recent books could be used to mechanically support them better -- and everyone on the Outer Planes are, by their very nature, alien beings. They could be 1E-level invested in their alignments without interfering with how 5E treats alignment outside of that environment.Add the de emphasis on alignment and Planescape is looking either further away, or changed in a way I won't like anyways.
Your player character being unaligned doesn't mean that there aren't guardinals practically vibrating with Neutral Goodness.