Blogging without keyword research may work, but you don't want to work hard for 6 months only to rank on the fifth or even tenth page of the search engines.
Using free keyword research tools, you can get a lot of information to write articles that rank high without breaking the bank.
Some of the free tools I've found great are Google Search Console, Google Analytics, Answer the Public, or Google Trends. You can also get a few free searches per day on Ubersuggest, but the data is limited.
Personally, I have come to the conclusion that using paid tools is the way to go, especially if you have little information about the niche, keywords, competition and other metrics.
Using free keyword research tools, you can get a lot of information to write articles that rank high without breaking the bank.
Some of the free tools I've found great are Google Search Console, Google Analytics, Answer the Public, or Google Trends. You can also get a few free searches per day on Ubersuggest, but the data is limited.
Personally, I have come to the conclusion that using paid tools is the way to go, especially if you have little information about the niche, keywords, competition and other metrics.