Since long-tail keywords (more than four words) have been found to be most used online, particularly in Google, ShoutMeLoud recommends using several online tools for an easy marketing win in 2023. These tools are SemRush, KWFinder, Lowfruits, Answer The Public, Google's Auto Suggestion Tool, and Google's Auto Suggest. While HiDigital recommends Keywords Everywhere, Keyword Surfer, Answer The Public, and Keyword Sheeter as robust tools for your general keyword research. Personally, I use Ahrefs and am totally fine with it. You might want to try it, too.