A very autistic schedule in Europe

Kia ora from Aotearoa New Zealand. I am autistic and I am coming to Europe for three weeks in June. I am looking for places to go and things to do where I can learn more about what autistics are doing in other parts of the world. I saw to come over for the Neurodiversity Pride Day. I am mainly going to France, Belgium, and Holland, but I can easily come over to England. Does anyone have any ideas please?