Best activities this week besides campaign?

Very sorry if this has been asked but I’m unsure what to focus on this week before S3 really drops. TBH I’m more of a dirty delver, so what’s the best thing I can do for my delvers journey prep?

Can I farm coffer keys yet? Can I just chip away at delves?

Any other helpful weekly activities I should know about that aren’t m+ or raid?

Thanks!!!!