Best Keywords Searching tools?

Ahrefs is great! is great, but I think out of the price range for many producthunt makers (or at least, for me). Ubersuggest is what we see most startups using and it does the trick just fine I think and often at Modash we will cross reference the results and make a decision.

At a lower price point (about half of ahref) but also high-quality, check https://kwfinder.com/ I have been using it for the past weeks and I am quite happy with it.