Credible EU charities/nonprofits?

This may not be 100% personal finance related, but the same way I do monthly ETF and retirement account investments, I'd like to regularly donate money to a good cause. I'd like this thread to be a list of credible EU charity or non-profit orgs that accept donations, and to perhaps inspire people here. What are some credible, transparent, heavily audited EU-based nonprofits that focus on issues such as environment, education, domestic abuse, healthcare (unusual diagnoses not covered by health in