Sweet wines includes, but is not limited to: Port, Sauternes/Barsac, Port, Icewine, any late harvest wine, Tokaji, Auslese & Beerenauslese & Trockenbeerenauslese Rieslings, etc. … My favorite is the Schott - Zwiesel:
Now we use mostly smaller festival tasting glasses (we have a lot and they’re mostly Riedel) for Sauternes (and similar wines from other places), Banyuls, and Mendoza Late-Harvest Malbec. For Rieslings we use some University of Illinois art glasses (given to us by a good friend). We also use these glasses for dry Sauvignon Blancs.
I like the same SZ glass for Sauternes, Madeira, Riesling and Tokaji. I prefer the Riedel Vinum for Port and some Madeira, Vin Santo and Sherry.
I use riedel vinum zin/chianti not to big but enough room to air it out