Engaging your current audience? Growing your audience? Something else?
To start, I’d say go on three or four funding portals and find companies similar to yours (in terms of what stage they are, and even industry and potential audience).
Look at which of those did well and which did not do as well, and see if you can notice any trends.
On Wefunder and Republic, you can even look at the list of who invested under “Reviews” and read the thoughts and reasons of why people invested. That’s a great, no-budget place to start developing your strategy!