The #EU has a petition system called "European Citizens Initiative". People can initiate petitions and collect signatures online via an EU official platform. Petitions that collect over one million signatures in a year, with at least seven member states reaching a minimum number of signatures, are tabled for discussion in Parliament. I like to check the platform every two months or so to support the petitions I agree with.

https://citizens-initiative.europa.eu/home_en

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European Citizens' Initiative

@alberto_cottica We have one of those in the UK. There's a certain threshold where the government have to issue a response, which is always "we acknowledge your concerns but we're going to do $thing anyway for $spuriousReason", and a higher one where the same process happens in Parliament.
@woe2you yes, I am familiar with it. The European Parliament is more divided than the British one, so your initiative has a chance to give some extra ammo to groups that are trying to mount some kind of push. For example, several member states are longing for a deeper solidarity with Palestine, and could leverage the obligation to table a parliamentary discussion that comes with a successful Citizen Initiative.