Search button is your friend. Uni intercooler is the most popular on here, mainly due to the price and it perfroms well. Fitment is an issue and it comes with poor clips and pipes. Forge fmic is pretty good, but expensive, but you get a straight fit intercooler that looks great and performs very well. Most expensive one is a pro alloy, performs very well again.
Budget options are the laguna and sprinter intercooler. A good few people have used the Laguna cooler to good effect, but it is rather thin and wont perform that well on anything over a ko3s conversion. Can be abit of a pain to fabricate brackets to suit, and you have to get the pipes made up etc Thing if only heard of a few people using the sprinter one and even heard a frontera one used, but you'll have to search on those. Best of luck