Welcome to the forum, and to Switzerland. If you'd like to get involved in some mass-participation 'cyclosportifs' this summer, then check out this thread, and see the index on this website. It sounds like you'd certainly enjoy doing the tour of Lake Geneva, or 'Cyclotour du Leman', see this thread.

I ride quite a lot, but normally either alone or with my wife because I don't plan my rides more than a few hours to a day in advance, which makes it difficult to coordinate with anyone else. This is especially true given the current weather, when you have to be ready to jump on the bike quickly whenever it stops raining.