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