Yes, both Storiad and buzzbomb.com offer a Free Trial.
Storiad is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
buzzbomb.com is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Storiad Starts at $35/Month whereas for buzzbomb.com Starts at $49/Month.
Some top alternatives to Storiad includes Sassbook, buzzbomb.com, SocialBook, Qualified, BetterBook, Workvivo, IndiePaper, Blog To Social, MediaKits, BookFunnel, MarketerMagic and IFTTT.
Some top alternatives to buzzbomb.com includes Post For Rent, TapInfluence, Upfluence, HYPR, BuzzGuru, Hubble, SocialBook, CreatorDB and Influence Hero.