I’m not sure about the others, but the Barbie marked #5 looks like the 1977 SuperStar Barbie (#9720). I use this site often for identifying SuperStar Era Barbies, and it’s been incredibly helpful! I’ve found that counting the number of lower eyelashes is the most reliable way to confirm an ID. It can be a bit tedious, but the payoff can be worth it!
That said, the site isn’t the easiest to navigate, and unless you’re fluent in German, you’ll need a translation tool. Most browsers will auto-translate, but if you’re using Chrome, you can right-click and select "Translate to English" for a quick fix.
Another fantastic resource is the Internet Archive—it has tons of Barbie reference books available to read for free, making it a great way to cross-check details.
Hope this helps! 😊
