... without sacrificing quality.
I was reluctant to take a subscription to semrush or ahref, due to the very high price.
On the other hand, I know that if I want to be serious about my website, a decent SEO tool is a must have.
With this mindset, I found Ubersuggest, a tool by Neil Patel, who not only is way cheaper on a monthly basis, but proposes as well lifetime subscription... which I took.
No affiliation here, but as far as I have used it, a quite good tool: