If it is for gaining personal experience and for your career portfolio, I'd suggest you to do it yourself so you can teach yourself the whole process of web development. Don't rush it, it's better to learn something than releasing an unfinished project.
As for recruiting people, either find people in person during meet-ups or conferences or join Slack and ask some of the communities.
Make sure to use your ideas somehow, else it would be a waste of time (and money if used any).