I used the Cicerone 2022 book on my August walk and it worked well. (Thanks, Dave!)
The trail is really well marked, so no need for the directions part of any guidebook (IMO), but the town distances, lodging options, and historical/site info is very helpful.
FWIW... The Cicerone book includes sections on a couple variant routes too. The Cele Variant is fantastic (although I missed a bunch of it due to injury) so plan on doing that if you can. And if you take a rest day in Figeac, it's easy to catch a bus up to Rocamadour for some site seeing. Racamadour was the prettiest town I saw on my whole 1000 mile Camino.
I also carried the Miam Miam Dodo books when I started, but didn't use them. They are in French (which I don't speak), but they have a lot of symbols which don't require French knowledge, even so, I found I was just looking at the Cicerone guide, so I dumped the MMD books at a lodging along the way. That said, others swear by these books.
The other guidebook I saw a lot on the trail was "Michelin Chemins de Compostelle Le Puy-en-Velay – Saint-Jean-Pied-de-Port." I can't speak to it's quality, but it has a really nice two page layout of each stage showing climbs and towns, which I think could help with planning. Cicerone also has this, but it's a little less detailed, I think.
(You need to buy an extra Miam Miam Dodo book for the variants. Not sure about for the Michelon book.)