Fansubber Irozuku is doing excellent translations and uploading their subbed versions on their website:

https://irozuku.org/fansub/tag/cherry-magic/

So far, the subbed versions have been uploaded on Saturdays, one day after the raws drop. 

Fansubber Ichihachi has also done some great subs, starting from episode 6: 

https://www.ichihachisubs.com/cherry-magic

There are official engsubbed releases on WeTV and Crunchyroll, but not everyone can access the drama on WeTV. 

Crunchyroll has decent subs, while the WeTV subs are unimpressive. The best subs are the Irozuku ones. 

YouTube uploads of subbed versions will most likely be ripped from one of the above sources, and they tend to get taken down pretty fast 

You are a beautiful human being, seriously!! Thanks so much for sharing this!!

It's on We'tv, Viki, Facebook, and Youtube it depends of the series or movie.

There r people posting it to utube too!

 Kimmi:

There r people posting it to utube too!

Yes, there are now! MARUSUB on YouTube has started posting versions with multi-language subs, and they look good. 

I found auto generated and auto translated subs to be legible enough XD

 -Aprillen-:

Fansubber Irozuku is uploading their subbed versions on their website:

https://irozuku.org/fansub/tag/cherry-magic/

So far, the subbed versions have been uploaded on Saturdays, the day after the raws drop. 

Shout out to Irosuku subs for making more doramas (my favourite)  available to the international audiences! Arigato! 

 Lee C :

Shout out to Irosuku subs for making more doramas (my favourite)  available to the international audiences! Arigato! 

Yeah! I dropped them a tip on their Kofi cus they are doing a great job!

Episode 1 is legally available with official eng sub on TV Tokyo’s YouTube channel.

I heard it was going on WeTv but I can't find it. Is it international or only in a few countries?

 Fuzzledumpling:

I heard it was going on WeTv but I can't find it. Is it international or only in a few countries?

If you can't find it, it's probably because it requires a VIP (paid) account on WeTV.