Host a fundraiser, make phone calls, or knock on doors. There are many ways to volunteer. You can even help by registering people to vote. If you can't volunteer in person, you can place a sign in your yard.
Here are some ways you can donate:
1923 N.E. 164 Street
North Miami Beach, FL 33162
Donate to Marleine Bastien's Campaign
It's easy to donate offline too.