Help in planning our trip, please

Hi, Everyone. Just joined up. We're new to motorhoming and planning an extended trip to Europe starting in April. Just hoping for some help and advice from those who are already experienced. We are hoping to minimise our stays on big campsites so one question is about wifi access and how this can be resolved without costing a fortune? Any suggestions? There are also a myriad of guidebooks out there about campsites, tours etc. Can anyone recommend which one or ones are the most useful. I've been looking at the "Michelin l'europe en camping car" guide which is in French (which I do speak) but would be grateful for any advice on this or alternatives.

Many thanks - and I'm sure there will be lots of other questions !!

Lynda