Help : Keyword Research + Money?

Hi there all super BHW members,
I just finished doing some keyword research and it takes me 4 hours (so far) for finding keywords that are easy to rank for newbie like me.

After hours spending on that task, I found plenty of keywords that easy/mid easy to rank for (as stated from other members here – the score etc).

Found some keyword like this:
best 10 (product)
top 10 (product)

And I checked the kw on Google, all top 10 site have almost the same title.
So, i'm thinking that :

"do they…

Help : Keyword Research + Money?