^^ no easy answer. I am retired so able to spend hours on different websites and have become a wine bore.
Tbh I don't think there are many real bargains unless you go over to France: many UK supermarket wines are designed to be 'discounted'.
If you know the type of wine you like it is not that hard to identify the wine merchants that specialise in those regions and support these smaller independents.
But generally I doubt you can do much better than The Wine Society unless you are prepared to invest a lot of time in the internet and/or travel to France.
Tbh I don't think there are many real bargains unless you go over to France: many UK supermarket wines are designed to be 'discounted'.
If you know the type of wine you like it is not that hard to identify the wine merchants that specialise in those regions and support these smaller independents.
But generally I doubt you can do much better than The Wine Society unless you are prepared to invest a lot of time in the internet and/or travel to France.