how can i get free targeted leads for my multi level marketing business ?

[Sam]

I have hard time finding prospects, nobody wants to sign up.

[Jake]

Too often MLM reps quite after making couple of sales to their immediate circle of family and friends, that's why recruitment is always the first priority of these businesses.

It may be unrealistic to expect to get free leads, imaging if you could get all the leads you wanted using paid advertising for 30% of your commission, would that scalable source of leads make sense. I have no idea if ads would work for you but it can product more predictable results than free approaches.
Facebook paid ads offer unique demographic targeting options, though they are starting to limit what may be advertised, many bizop offers aren't allowed, dating ads are no longer allowed by independent affiliates.

Creating a quality information publication web site is a common way to attract targeted prospects, providing lots of quality information that visitors and search engines find valuable is the traffic driver, your pitch should appear as almost an after though addition to the helpful content.