Some countries, localities etc also offer grants, loans etc to fund creatives, be aware that many (but not all) of these need to be paid back. But it may be worth looking into if you need serious funding. If you are just looking for small amounts of funding, you may want to try reaching out to smaller internet based businesses for product placements, sponsored messages, acknowledgements in the credits etc. While businesses local to you would be the go-to for most people, it wouldn't make sense for a local dentists office to want to get involved, but a locally based internet T shirt company that has a print on demand website may be more likely to be willing to throw some money if there is a link to there shop somewhere.
But keep in mind, mutually beneficial arrangements with businesses may make your project look like a sponsored work to potential players, while its one thing to add consumable inventory items based on a soda brand you are advertising for a sponsorship, or maybe a "thank you sponsors" splash screen, its a completely different thing to add links to other company's online stores.