There is no simple answer to this question as it depends on a number of factors, such as your country of residence, the type of project you are looking to fund, and the amount of money you are hoping to raise. Some popular equity crowdfunding sites include Seedrs, Wefunder, and Crowdcube, but there are many others to choose from.
For example, if you are based in the UK and looking to fund a tech startup, you might want to check out Seedrs (https://www.seedrs.com/). Seedrs is one of the leading equity crowdfunding platforms in the UK and has helped finance over 1,000 businesses.
If you are based in the US and looking for a crowdfunded loan for your small business, you might want to check out Kiva (https://www.kiva.org/). Kiva is a microlending platform that has helped over 1.5 million people in 87 countries access loans.
In general, it is a good idea to do some research on different equity crowdfunding sites before picking one. Make sure to read the fine print and understand the fees, rules, and regulations of each platform before committing to anything.