I've used ozone a long time ago, and it is effective, but to answer the question as far as best skimmer for using ozone, can't honestly be answered....The best thing to do IMHO would be to determine what skimmer you have in mind and then check with the manufacturer on the use of ozone with that skimmer.....Some parts aren't ozone safe, and if the skimmer isn't it will destroy it quickly.....Ozone is an oxidizer.......You want to make sure you inject ozone in conjuction with the use of a controller....An over dose of ozone, can be lethal to your fish, but also you as well....So it's something you just don't let run unmetered or unchecked.....Probably the simpliest ozone maker out there IMO is the one by RedSea.....They have several different models; some with the controllers others not. They also make different sizes of ozone machines as well, and that is determined by size of system.....
What is your reasoning for wanting to use/inject ozone?