Fwiw, some crunchyroll shows that I think are relatively easy to follow,
Koutora-san
Tari-Tari
Sailor Moon Crystal (except the past-lives discussions sometimes get difficult)
Chi's Sweet home (shorts) (easy except for Chi's slurred speech)
and of course you already know about Polar Bear Cafe.
I think Locodol and Non-non Biyori aren't too hard either (largely because they are very slice-of-life and use a lot of daily language), but maybe they are a little harder than the above. Hard to say. Worth a try anyway.
Hrmm. There are several other shows that were pretty easy that seem to be gone now.
Also, shows like One Piece, Fairy Tail, Bleach, and Naruto are realllly long, which can be an advantage. If one of them is to your taste, you could just give it a go, because you'll get used to the specific terms used in the show. There's also a lot of repetition/recapping to keep the audience on track ... after all they originally released over the course of years, with 1 episode a week at most and periods where the show is on hiatus. You can also read along in the manga if you want to help build up your vocabulary. Once you get used to the accents, character names, and frequently used terms of a specific show it's much easier to follow each episode. With a 12-episode show you're just getting there and the show is over.
Of course, all four of these shows are also full of examples of speech that would never be used in normal life. That, however, only means that they're bad models for your own speech - other than a handful of made-up terms, there's nothing in them that you won't encounter in normal Japanese at some point, just not used in quite the same way the word or speech patterns are used in Anime.
Koutora-san
Tari-Tari
Sailor Moon Crystal (except the past-lives discussions sometimes get difficult)
Chi's Sweet home (shorts) (easy except for Chi's slurred speech)
and of course you already know about Polar Bear Cafe.
I think Locodol and Non-non Biyori aren't too hard either (largely because they are very slice-of-life and use a lot of daily language), but maybe they are a little harder than the above. Hard to say. Worth a try anyway.
Hrmm. There are several other shows that were pretty easy that seem to be gone now.
Also, shows like One Piece, Fairy Tail, Bleach, and Naruto are realllly long, which can be an advantage. If one of them is to your taste, you could just give it a go, because you'll get used to the specific terms used in the show. There's also a lot of repetition/recapping to keep the audience on track ... after all they originally released over the course of years, with 1 episode a week at most and periods where the show is on hiatus. You can also read along in the manga if you want to help build up your vocabulary. Once you get used to the accents, character names, and frequently used terms of a specific show it's much easier to follow each episode. With a 12-episode show you're just getting there and the show is over.
Of course, all four of these shows are also full of examples of speech that would never be used in normal life. That, however, only means that they're bad models for your own speech - other than a handful of made-up terms, there's nothing in them that you won't encounter in normal Japanese at some point, just not used in quite the same way the word or speech patterns are used in Anime.