@steembasicincome is the account. The best way to help them is to upvote their posts and comments or delegate SP to them but I don't suggest doing that until you at least have your slider bar (500SP).

Also you can sponsor someone into SBI and that helps keep them growing. To do that all you need to do is send 1 steem to @steembasicincome with the name of the person you are sponsoring. Nice thing is that also gets you an extra share, win-win!