Improving rank with traffic in a low competition Keyword

I want to try to improve my rankings by buying some monthly traffic to my site, just to have some visits.
What you guys think of thoses gigs from fiver to drive traffic to your site?

My keyword is the name of a product, and the keyword has a monthly search of 1000, very low search. But my competitors have a lot of other products and keywords in their sites besides this one that I'm competing. I want to pass them in the serp only in this specific keyword, what you guys suggest?

if i recommend i say Try Adword get Quality user who stay on your site it's help you a lot in ranking non-relevant traffic give nothing

Even if is a niche related traffic?

if it's niche related then it's good if user's jump without any activities it's bad for user experience