1. Semrush All-in-one suite
Best for: Marketing teams that want one platform covering SEO, competitor research, and content/PPC research
The broadest all-in-one SEO and marketing research suite
Semrush earns the top slot here on breadth, not on being the sharpest tool for any single job. Keyword research, rank tracking, Site Audit, Backlink Analytics, competitor traffic estimates, and even paid search intelligence all live in the same subscription, which is genuinely useful for a marketing team that doesn't want five separate logins for five adjacent tasks.
The tradeoff is that the entry Pro tier caps you at 500 tracked keywords and one user, which feels tight for a site with a large target keyword list, and the sheer feature surface takes real time to learn. If your only job is keyword and backlink research, a narrower tool below will typically do it cheaper and, in the case of backlink freshness, arguably better.
Where Semrush pulls ahead is for teams whose SEO work overlaps with PPC research or competitor intelligence - the same subscription that runs your Site Audit can also pull a competitor's estimated paid search spend, which would otherwise need a separate tool entirely.