I've just been looking through a site that has a lot of clone recipes! It's in French, but a button on the bottom left allows translation and you can move through the whole site once you click on the US flag for
English.
There's a lot of recognisable flavours/brands there including things like Digby's, Beard, 5 Pawns, Kings Crown and lots more.
Some recipes are surprisingly simple, others fairly complex.
Each one, when clicked on gives the recipe in both ml and %percentages. A little box to enter your bottle size will instantly adjust those quantities.
This link is for the heading 'clones':
Les Clones - Le DIY pour les Nuls
Then there's other headings, such as 'Gourmand' which shows a lot of recipes, some look rather familiar.
Les Clones - Le DIY pour les Nuls
It could be a useful site for at least saving money on favourites. Best way is to search for what you're hoping for, otherwise a browse through them all is interesting
I found two that definitely interest me as I can only get them in 50/50!