Hi, Triund is a shorter trek and is a good option if it is your first trek, you should go for it. However if you want something more you should definitely head out to Chandrashila, it is a 3 day trek covering Deorita-Chopta-Tungantha and Chandrashila. You will see beautiful meadows, snow capped peaks of Uttrakhand, you will visit world's highest Shiva temple and the pleasure of summiting Chandrashila and have this amazing view.
Hey. Go for Chandrashila. The views enroute are magnificent. Triund top is nice. But Chopta, and hiking from Chopta to Chandrashila is another level altogether.