Google Violence against Women and Girls Strategy for your local council or police force or Police and Crime Commissioner. Find out what they are working on and who with.
The strategy started in 2015 and ends in 2020, so projects, initiatives and services should have been developed. See if one of the service providers chimes with your own interests. They might appreciate an offer to leave leaflets in women's spaces, for instance.
If you feel inclined, please, please, please consider going to a public meeting locally and question councillors, police commanders and the Police and Crime Commissioner about their VaWG strategy.
I've been to shed loads of public meetings about local policing, (to give an account and listen to public views and complaints) and I've never, ever been asked about domestic violence or rape or murders of women. I will go as far as to say that the audience's eyes glaze over and their attention starts wandering, when I've introduced the subject.
This non-involvement leads the council/police etc with the impression that no one will ever ask them the tough questions : 'why are you so bad at convicting rapists?', or 'why are so many women being murdered every week?'
Don't get me wrong - you'll find that there are some fantastic services and women's groups doing great work locally. I just believe that there is much to be gained by going to public meetings of the Police and Crime Commissioner - where the police and councillors attend too - to put the people who hold resources and have responsibility for results, on the spot. It's not for everyone, I know.
Good luck in finding an activity that suits you and your interests.