What's the latest in sharing services?

We are currently building a new web app (https://www.moneyminx.com) in React with a Node backend. Users will have the ability to share asset allocation charts of their portfolio with other users or on the main social networks. Has anyone dealt with this recently? Wondering if we should build our own using the FB, Pinterest and Twitter APIs, use the old Addthis or Share This services or if there are new services that handle this for you?