In Death Stranding, how to make bridge link with my PSN friend whom I haven't met in the game?
There is no current way to force any other player into your game world server.
The only option is to keep reloading the game in hopes you eventually meet, which just isnt practical.
As a side note, should you ever see their name on your Bridge Links list, you can enter into a Strand Contract with them and ensure their structures are always in your game world.