SEMrush is hands down the best tool for keyword research. I love that you can do competitor analysis and find the keywords people are searching to go to your competitor's site. You can add all your projects in one big dashboard and see a quick overview of your keyword rankings (I do this every other day to check if my sites were penalized/keywords dropped). The reporting feature is also a great alternative to Google Analytics and we send automated reports to our clients.
The My Reports tool also enables the creation of custom reports complete with your business’s logo, annotations, comments, and other features. All of the custom report features exist to highlight and clarify your findings, structure, etc. You can also use pre-defined templates which makes it possible for anyone in your team to create a report and even schedule its creation.
Pros: The main thing about Semrush is versatility and SEO functionality, but beside SEO there are lot of things you cqan do with, such as: brand monitoring, position tracking, SEO ideas and backlink audit. If you are not familiar with it, you can watch tutorials which are extremely helpful, but the one thing you should now is that you might be overwhelmed with lot of information about this platform. The price is affordable but it might be expensive for small size businesses. I like the competitor tracking because it is useful and it allows you to see competitor backlinks.
Their SEO content template tool is also a great one for beginners. You have to just put the keyword you want to rank for and the target geo and it will provide you a template to do that. It'll tell you the keywords you need to use in your content and on-page elements and the domains from which you need to rope some backlinks to make your piece rank on the first page.