I am a sec sch teacher In woodlands, one of the best schools include Riverside Sec school. Evergreen Sec is up and coming as well...If you are willing to go a little further eg Yishun - Yishun Town is a gem too, so is Chung Cheng High.
You can actually go to website to look up their niche areas or focus areas - if you want more information, schools now are very willing to share information with you - you could call the school and speak to the teacher i/c of publicity or any of the HODs to find out more.
Gd luck! You can pm me if you wish to find out more information.