I've attached the Triratna version of the Buddhist Action Month Handbook which I compiled in 2016 and is full of suggestions and ideas for Buddhist action ranging from litter picks over guerrilla gardening to a commitment to a month of 'five minute interventions'.
It also contains an Event Planning Guide, a template for an Energy Audit for your Buddhist Centre, supporting info on how to become a Sustainable Buddhist Centre and other helpful ideas.
In addition and more up to date in terms of this year's theme, I've attached the nbo (Network of Buddhist Organisation) version of the Handbook written by Christine Thuring which includes info on the suggestions for practice for this year.