Best way to get advance notice of notable aircraft arrivals?

[Robbie J]

So, this question goes out to those with a greater knowledge of the topic of spotting than myself...

How do I get advance notification of interesting or unusual aircraft arriving into YSSY?

I am not at the airport regularly and when I do go there - assuming it isn't raining like it has been for the last year (and COVID-19 restrictions before that) - I just hope that the sunlight will be good and the aircraft movements will be frequent.

I'm sure there's a better way. Can the Moderator of this forum start a new 'Sticky' with details of rare or important upcoming arrivals, or do you already have that function somewhere on this forum?