Osho left his body in 1990, but in the context of his work asks to never be spoken of in the past tense .
The basic and outstanding resource for Osho’s work is osho.com. There are comprehensive explanations and many free resources. Some need a free registration.
You can search and read Osho books at osho.com/library (you can’t download or cut-and-paste text.)
The excellent osho.com Youtube channel https://www.youtube.com/oshointernational has many short video talk extracts, quite a few of which are free.
A small but delightful resource is http://mysamasati.com/ , where you can sign up to get a short daily quote on meditation, including the audio, in your email inbox.
The Osho Meditation Resort in Pune ( www.osho.com/osho-meditation-resort ) in India is an amazing, amazing place with a powerful feeling of Osho. He puts emphasis on meditators meditating together and long envisioned a community with a pull of meditation so strong that new arrivals would simply be drawn into meditation. Yes it’s a long way away, but don’t rule out a visit.
There are two famous English-speaking Osho meditation centres accessible from the UK:
Osho RISK in Denmark (http://www.oshorisk.dk/) (All progammes in English)
Osho Miasto in Italy, http://www.oshomiasto.it/ (In Italian with English translation available.)
They have the combination of therapy, joyful celebration and inner silence on the path which is characteristic of Osho’s work. They are the two places most accessible from the UK which have the quality of what Osho calls a “meditation resort”, where just by visiting one is drawn into meditation.