I'm a Zoë with the diaeresis so I'm obviously biased. Might not be something that affects you but I work in an international role and when people from some other countries see my name on email so without the dots they read it as Zo (like Joe). I'm not precious about people remembering the accent when writing it so it doesnt bother me when people write it just Zoe but the dots definitely help with the pronunciation.
I’m also a Zoë - I think it makes my name look pretty🤷🏻♀️ but considering my mum is the only one that actually adds the accent to my name it tends to be a rarity to see it like that lol
Personally, the best spelling is Zöe, but I am a little biased. Mine is German influenced with the umlauts over the o.
I like zoey but spelt Zoie...