Yes, you can search for bonds as well on xtf.com. You can search for every asset class by investment objective. You can also search thematically using the Heatmaps.
Try XTF.com.
Has everything you are asking for and much more.
Specifically, http://www.xtf.com/Research/
will allow you to reseatch all ETPs by investment objective. Navigate to asset class commodity, for example. Then see the performance and fund flows of the entire commodity marketplace...