The Pearly Gates Route on Mt Hood is considered the standard approach. It still requires some skill on ice.

Climbing Mt Jefferson via the southwest ridge is the easiest route to accomplish in one day. It will require route-finding and alpine skills.

A climb of the Avalanche Gulch route on Mount Shasta in Northern California. With 7300 feet of elevation gain it makes for a good challenge

As the tallest peak in the lower 48, Mount Whitney is a must for every hiker at least once.

Leuthold Couloir is the next step up from the pearly gates climbing route on Mount Hood.