Lastly, if your company can afford it you should get ahrefs.com or semrush.com since these tools will help you do competitor research, keyword research, and domain research all of which are hugely important to finding the right keywords to target for your client. - Source: Reddit / 3 months ago
Ahrefs - Ahrefs is a toolset for SEO and marketing. We have tools for backlink research, organic traffic research, keyword research, content marketing & more. Give Ahrefs a try!
Moz - Backed by industry-leading data and the largest community of SEOs on the planet, Moz builds tools that make inbound marketing easy.
Conductor Searchlight - Conductor Searchlight, generates customer intent insights that lead to compelling content, increased traffic, and higher organic marketing ROI.
SE Ranking - All-in-One cloud-based SEO software for agencies, marketing teams and webmasters
Screaming Frog - Screaming Frog is search engine marketing agency offering search engine optimisation and pay-per-click advertising services.
TapClicks - TapClicks is a cloud-based solution designed to unify marketing, advertising and branding activities in a user-friendly, adaptable and scalable interface. Read more about TapClicks.