Seven questions (where you sail, what for, which boat, your age and experience) and the licence that fits, with the path to it, the miles and days you need to bring, and where to start.
Answer seven questions and get the licence that fits what you want to do, along with the licences that lead up to it, the miles, days and night hours each asks for, and the notes that apply to your situation. The figures are the issuing bodies' own; the full comparison, with costs and where to take each licence, is in Sailing licences compared.
Where could you take a licence?
Pick one or more. You get a recommendation for each.
The result is a starting point, not legal advice: charter companies and exam boards set their own rules, and they change. Keep the numbers the licences ask for from your first trip. Manta logs miles, days, night hours and passages per trip and turns them into a mileage certificate when you apply.

Manta does this for you
Mileage certificates for your sailing licence Pro
Turn your trips into a mileage certificate, with every trip listed and signed by the skipper. A PDF ready for SKS, SSS, RYA and other licences.