It’s not even a town.
The road to Wulai has some some communities that ain’t too bad at all.
Yilan is generally a nice place to live. It’s at least an hour or bus on the train. Luodong (with the awesome sports park and beautiful surrounding countryside and Riverside ) is a particular favourite of mine. There is a bus and train station in Luodong, connections to Taipei are good. Door to door it could still be an hour and half depending where you lived.
There are some mountain towns near enough Taipei but they aren’t all exactly picturesque, more importantly they could be a bit damp or challenging in typhoons and a bit of a pain to commute in and out from. The main reason that I never moved to Luodong is because the airport is a little far away, that’s all.
To the North of Taipei there is the New Tamshui and Sanzhi area. Can be quite nice and fairly easy to commute by mrt, bus and train but probably hour to hour and a half.
In Taichung area there are many options for nice small towns commutable to the city but not Taipei so much.
I just mean that the suggestions keep taking him further and further away from the university he already said he will be attending when they make this move.
We need some realism here when the OP thinks the commute from Neiwan will be 30 minutes. EDIT: Apologies, OP. I guess you mean a 30 minute commute to Hsinchu. So, you’re looking for somewhere in the mountains around 30 minutes from NTUT? How much is your budget?