Quote:

A(#4)
= A5b

A(b9)
closest is A7b9

Am(b5)
closest is Am7b5 or Adim7

Am(b6)
closest is Amaug

Amaj7(#11)
closest is AMaj7b5




For the Am(b6), a Cmaj7 would fit nicely (only no root). I think the F in the Amaug would probably clash.