If you would consider applying to lottery organisations, you might like to look at the People’s Postcode Lottery announcement regarding their Dream Fund.
A total fund of £3.5 million is available and projects can be funded for 3 years from 2022. In its launch announcement, PPL say that ‘The Dream Fund is encouraging applications from projects which seek to develop innovative solutions and deliver systemic change in either the environment and conservation, social inequality, or pandemic recovery.’
You can find out more, and apply using the link above.