Welcome to TFP!!
You are getting very good advice here
The pavers alone will not! hold a standard 3/4" anchor! You need what bk406 talked about! These are 18" tubes with the anchors embedded in them. You need a 1" bit to drill the holes for them (and you are correct that you need to either drill the hole at the seams OR in the ~ center of a paver- though you still may break a few pavers trying to drill through them)
I've done this a few times and am willing to give advice when you go to plan/ do this
Hey guys I'm putting safety mesh over my pool this week anchored into patio pavers with the metal anchor tubes. Any tips on the drilling or process?
Thanks