Welcome to the Q&A Forum

• what type of writing worked better, highly technical or conversational

• what length of article worked better

• what keyword density worked better (don't concern yourself too much with this)

Different niches will require different things.

Once you've done enough to get a little search traffic, expand on the post that worked, write a similar post about a slightly different topic.

Basically, throw some stuff at the wall and see what sticks.

Need help to increase my website DA its about Mod Apk.

I usually go with keyword everywhere to check the search volume of a particular niche. And to check the keyword difficulty MOZ is my go to platform. Its KD is one of the accurate among other platforms. With the help of MOZ I was able to find this keyword.