Marketing management with SaaS business

I need some help with internet marketing We have a Wp plugin that we want to promote. we are looking for agency / freelancer that have proven results with existing Saas / Wp plugins promotions. as part of what we are looking for: * influential marketing * 3rd party blog articles and PR * ad management for fast results. * AB testing onsite. to improve results. Our market is US. we are looking for people that's understand market research, targeted marketing, and can self plan and execute.