I'm looking to see some glaciers in the north cascades i do a little bit of scrambling here and there. I'm summiting Eldorado peak this summer and looking to find another peak with glaciers and doable under class 3.
Eldorado is surrounded by some of the largest glaciers in the park, so that is a good first choice. Cascade River Valley is one of the most spectacular and accessible spots in the North Cascades, but much of the climbing is of a technical nature, so I would recommend driving a bit and seeing another area of the park.
Mt Ruth-Icy Peak traverse. Definitely glaciers, not under class three (one pitch of mid 5th on Icy), but you can skip the final pitch to the summit block of Icy and just enjoy the scenery, which includes the Price Glacier and Nooksack Cirque of Mt. Shuksan.
Mt. Shuksan. You shouldn't miss Shuksan, really one of the gems in the North Cascades crown. You can climb the Sulfide Glacier and find a class 3 route on the summit pyramid.
Mt. Forgotten, also approached via Cascade River Road is another thought. Glaciers, < class 3, long walk.