the point above is right, its not one or the other. parasite is a page, pbn is a link source. you can push a parasite with pbn links lol
but if the real question is "what gets results fast and cheap in 2026" then honestly neither for most people. parasites are getting caught faster than ever, pbn costs a fortune to maintain properly. what i do instead is buffer properties i own, tiered with automation, direct to money site with strict filters. slower than a parasite for sure, but nothing to lose when google flips a switch and it costs a fraction of a pbn
if you want speed use a parasite and accept it dies. if you want it to still be there in a year, build your own layer