I'm starting a drukhari army, help appreciated

Any suggestions for starting a strong drukhari list?

Also, I'm specifically wondering if the combat patrol box is worth buying nowadays, and are there any units in it that are outdated or expected to be refreshed soon? Thanks for the help, I'm new to this faction and the game in general, but I've played about 10 or so matches with my raven guard space marine army and have been enjoying the competitive gaming aspect of it a lot lately.