On Sunday, April 29, 2018 at 7:20:08 PM UTC+12, Paolo Guardigli wrote:
Hi everybody,
can you suggest some good and safe glider to start ?
Thanks to everybody

Paolo

As well as the pilot's skills, it also depends on the environment.

In an open flat place with plenty of thermals and many small fields the answer might be something like a PW-5, Ka6, or 1-26.

In another place with no landable farms but long airfields spaced far apart, winds, strong lift and strong sink it might be essential to have a glider with high L/D (and desirable water ballast and high rough air speed).