I was under the impression that all Seat Ibizas (even the halogen headlights ones) already have small triangle LED DRLs. Headlights wise, I would stay away from any LED bulb upgrade, as most cannot output the claimed output, plus might cause errors on the system, but instead pershaps upgrade the long life (dim) bulbs to something like Philips Xtreme VIsions + 130 or Osram Nightbreakers Unlimited. Yes they would be brighter and reacher further (still yellow white colour though), yes they would probably go pop after a year, and sadly no, they won't have the same light output / colour as the full LED equiped
Ibiza headlights. I really don't think you would be able to match the factory fitted LED headlights with any aftermarket bulbs (legally in UK at least).