Which SEO tools you like most and why?

I have found SEMrush to be the most beneficial SEO tool for my current work on my clients' website (https://trainspeedtest.in/). Its comprehensive features, such as keyword research, competitor analysis, and site auditing, have greatly aided in optimizing their online presence. SEMrush's user-friendly interface and reliable data have consistently delivered valuable insights, enabling me to make informed decisions and enhance their search engine rankings effectively.

I like SEMRush as it mostly shows real data and details of website. Also it shows all details of websites even GOogle Ads Copies, Backlinks, Website Audits, Keywords Ranking etc. So it is worth to use this tool.