The Community Foundations Directory by Region will help you find the Foundations in your area. Community Foundations often have grants available to support local organizations with their fundraising needs. Check them out to see if a project you have in mind might fit in with their priorities.
Ontario Mutual Insurance Association (OMIA) is a provincial level partner with 4-H. Each individual Mutual company has funds they can use to support local groups. Here is a list of the individual Mutuals across the province and their contact info that you can reach out to. Don’t forget to thank them for their provincial support.