How to choose donor sites?

Question

Search Engine Optimization

Hello community!
Almost filled the site and thought about buying links for SEO.
Registered on Miralinks, replenished the account.
Let's say that there is even an understanding of what filters should be applied (googled).
But the question of how to check which of the sites is really worth buying links is still relevant.
We are very afraid of harming the site. How do you choose sites?

Answer 1

Almost completed site

Throw it away and buy a new one
not worth it, unless you have a time machine to go back to 2005 and buy there (then)
On those that do not sell links to Miralinks (you can substitute the name of the site for another one). The algorithm is certainly more complicated, but I'm afraid I don't have that much time. Just don't do it.
then don't do what you don't understand

Answer 2

they are chosen live for a natural exchange,
only now everyone is savvy and "naturally exchanged" for grandmas
, it is clear that exchanges have no place in this scheme