An interesting thread!
The little Jodel I fly these days doesn't have an AOA indicator - indeed, it has very few instruments. So I use the ASI to tell me how things are going. It also has no flaps, and glides quite well for an old lady. It will stall, but complains through the controls first.
The standard method of losing height quickly is to sideslip it. It behaves well doing that, and fortunately (or not, depending on your point of view) the ASI indications when slipping are useable. I find that keeping the same IAS while slipping works reasonably well. Roll out of the slip, and the IAS remains unchanged. It actually needs a slight amount of up-elevator to stop it speeding up in the slip.
I'm sure there's less lift in a slip, because it's going down like a lift. As to what the "stalling speed" is, I have no idea. 80kph indicated seems to work well.