If I were you, I would stay very far away from Fiverr when it comes to backlinks.
It is a notorious place for automated backlinks.
In many cases, the backlink profile you get doesn't look natural at all.
It's as if a lot of these providers just created tons of accounts in a very short period of time to create your backlinks.
I would focus more on PBN or, if you're looking for the best type of "earned backlink," go for SEO press releases.
I'm not talking about the typical SEO press release that is stuffed with keywords.
Those are trash!
I'm talking about real, newsworthy press releases that are hand submitted to a select number of outlets.
These newsworthy releases hijack the latest news trends so your website or brand can get the attention it deserves.