They followed it up with an adaptation of 'Sanditon', Jane Austen's unfinished novel, which was more an experiment on their part and was a bit meh, but follows Gigi (Georgiana) Darcy on an adventure and fills in a gap until their next production, which was called 'Emma Approved' and was an adaptation of 'Emma'. I actually enjoyed it more than the first series, but Emma is my favourite Jane Austen novel. And now they're making another season of it! It just started last week, but I only spotted it last night on my YouTube recs. It looks like they are or will be folding in 'Persuasion' now. All the series take place in the same universe already, with some of the Lizzie Bennet characters appearing or being mentioned in Emma Approved.
I was very late to the party when I binged my way through the first three series, so it's exciting to be here at the beginning of this one. And they tend to be pretty short, fluffy episodes (though LBD can get a little heavy through Lydia's storyline on occasion), so it's good for my recovering self to have to enjoy. If you're interested in any of them, the playlists are below. It's best to watch via the playlists because the stories were told over multiple channels and the playlists make sure you get everything in the right order.
The Lizzie Bennet Diaries
Welcome to Sanditon
And the new Emma season can be found here. It doesn't seem to have its own playlist yet.
They've also done adaptations of 'Frankenstein' and 'Little Women', but I haven't watched either of those so I can't comment on them.