Fastmail[0] is what I use for my personal email. They support all the standards, but are also pushing things forward with standardising the JMAP protocol[1] which is much better suited to mobile clients than IMAP.
They only have email and calendaring though, no equivalent of Drive/Docs/Sheets.
Australian businesses have to provide GDPR protections to EU citizens, regardless, just as EU companies operating in Australia have to obey Australian law.
I also have a feeling the Five Eyes agreement is about to end.