Hi Raziel346... welcome to the forum!
No replies to your query yet, probably because we only get the hr16de engine here in Canada. No 3-cylinder Micras to be seen!
That said, it sounds like you may have answered your own question... the AEM filter sounds like the best option for low-maintenance.
If you do a search of members' cars, you'll find that most people have gone with K&N.
https://micra-forum.com/dto_garage_s...hp?do=advanced -- do a search on "filter" in the "Under the hood" field.
That may just be because it's the most well-known brand.
Let us know what you decide to do!
View my fuel log 2015 Micra S manual: 5.0 L/100 km ... 56.5 mpg (Imp) ... 20.0 km/L ... 47.0 mpg (US) ...