Just like the title asks, can the druid casting Animals Shapes target themself, or does the first line "Your magic turns others into beasts" mean that you can only target others? Thanks for your input!

At least RAW, yes. 

The spell says "Choose any number of willing creatures that you can see within range".

PHB says "If you are in the area of effect of a spell you cast, you can target yourself." Range is 30 ft.

Sage Advice confirms that here:

https://twitter.com/JeremyECrawford/status/859567750724726784?ref_src=twsrc^tfw|twcamp^tweetembed|twterm^859567750724726784|twgr^2302f09228e73f528a9f4be1b85e0045841b424a|twcon^s1_c10&ref_url=https://d-17162278202205146497.ampproject.net/2207221643000/frame.html

So as long as you choose targets 30 ft. away from you, you can turn into a beast with them.