Another answer to your question would be - any filter that is spec'd for the smart engine.
You don't "void the warranty" by using after market filters. There is one filter brand whose lowest cost filter may not be such a good idea to use, however, even it will not void the warranty. I won't make mention of the brand since it is often a topic of vitriol debate.
Just buy a filter from the dealer, or go to a automotive parts supplier and ask for a filter for your car.
A slightly more direct answer might be to use the search function and find all the threads that listed filters. I'm not being rude by suggestiing that since that is what the search function is for and this has been a common topic. I found 325 threads about filters by simply inputting the words "oil filters". If you're more creative in the request you might narrow it down a bit. Have fun.