I have seen a lot of people using Dunlops in WagonR, it is a good option. While, other options could be Yokohama, General and some others Korean, Chinese Manufacturers.
As for the noise, yes, the General tires do make a lot of noise compared to others.
You can also search the 'Suzuki WagonR Owners' Club' with 'tire'/'tires' and you will get a lot of results.