You can get the best keywords for SEO by using Keyword Research Tools. Examples include Long Tail Pro, Ahrefs, KW Finder, and Semrush. Of course, there are many such tools that you may explore.
Paid version tools actually help to generate the most productive ranking keywords [based on your objectives] rather than generic ones [less effective] from the below-stated platforms, which may be used to get some ideas to move ahead:
Exploding Topics.
Google Keywords Planner.
Google Trends.
Ask The Public and
Answer Socrates.
To strengthen opportunities, you can also look for keywords based on conversations and engagement from Reddit Communities and the Quora platform.
P.S:
You are currently on the Digital Marketing Forum page; for more information on various topics that may be helpful, please visit Blog Posts (button below) and share any content post you love with your network.
[If you have any specific questions in mind, please drop a mail and I will answer through a post at the earliest possible time]. Check this forum frequently for fresh posts.