As both analog and mono delay, I use Chase Bliss Thermae. But my more permanently connected (stereo) delay pedals are Strymon Volante and, to the extent that they serve as delay among many other things, Strymon Deco as well as Chase Bliss Onward. The Thermae is great in series, first a mono delay, which gets then thrown around by stereo delay, a sound that's otherwise difficult to achieve. Thermae and Onward together are overkill, so I usually swap those.