How To Get The Same Backlinks Of Your Competitor?

Hi, I would like to know how can I get the very same backlinks my competitor ranking above me has. I own evry seo tool known and/or have money to buy it (if needed).
I tried with Scrapebox and with SEO spyglass but they both give me some error at some time, so if someone could me guide trought those or have some other method to obtain the list of my competitors, please let me know. thanks in advance