First and foremost you need to interview investors as much as they nit pick your team. Right fit is a great way to put it. You want strategic investors whereby they can introduce you to his/her network. AngelList is great as well as many other fundraising sites, however... one thing rings true with ALL of fundraising opportunities. People are not looking for a good idea. They are looking for the team, market size, traction, then idea. Good luck!