I am unable to place funnels in drawers without using hoppers.

This is a function of funnels, nothing that storage drawers can do about it as they are designed to always place when right clicked. You can change your config so that drawers use right click to extract and left click to insert, if it bothers you that much

You can also place funnels in a drawer by using funnels

Create Funnels work great with drawers