I have uploaded a hot niche video to youtube that I thought there would be too much competition in youtube to earn any decent amount of money from it, but today I'm consistently making a few dollars per day with PPD from the video. I then scaled it up by uploading other videos with similar niches and include PPD download links in the descriptions. I boosted the videos with views, comments and favourites but I still get little to no clicks at all from those videos. 99% of the clicks are still from the first video that I uploaded. So I'm wondering, how do you guys estimate the profitability of a niche? Do you check the number of competitions in youtube or check the number of searches per month by keyword planner? On a side note, the niche of the first video that I uploaded has competition of close to 2 millions in youtube and monthly searches of about 70k.