I would say Azata might be the most flexible path of the ones I played in terms of alignment. Demon is possible as a good character, but like I said the game will punish you for playing that way. But like I said before, not sure it's a bad thing

Larian's Biggest Oversight, what to do about it, and My personal review of BG3 EA
"74.85% of you stood with the Tieflings, and 25.15% of you sided with Minthara. Good outweighs evil, it seems."