Does anyone know of any good guides, posts, or articles that deal with defending against light 3-betting. This is an area of my game that can really use some work. I am beginning to think that this is a complicated topic that depends heavily on our opponent's tendencies, and I would rather not learn the hard way. Generally I tend to 4-bet with the top 3rd of my opponents 3-betting range, 4-bet push w/ AK or Axs, call with SCs and PPs if I am getting 10:1, and call/donk the flop with the rest of my range if I think I am ahead of their range. Any advice would be appreciated.

Also, what do you consider the optimal light 3-betting percentage against a typical TAG with a PFR of 8-10%. Does this change much if the PFR is 12 or 14%? Is it best to look for the right spots to 3-bet with a wide range of hands, or to 3-bet with the top of your range that you would normally fold?