Speaker Sampler Platter

I’m looking for help putting together a reference list of not ridiculously expensive speakers that are representative of their respective types. 

For example, I bought a pair of Zu Omen DW to get acquainted with the Zu sound for a change after 20 years with the same 87dB ported boxes.

Magnepan LRS is an easy one to put on the list. I’m not sure if Klipsch RP-600M are technically horns, but they should be worth a listen. Probably want to get a little sub to be able to evaluate them fairly against floor standers.

It gets more difficult from there. I know nothing about open baffle, dipole, ribbons, and the rest of the long list of things I don’t know I don’t know. I want to give myself the opportunity to hear at least a few more examples before committing to my next set of “keepers.”

Basic guidelines would be under $1,000 and typical of the sound for its type. I get that some brands are hard to define and might be considered unique. I think budget will require some buying and selling used. I’m not opposed to taking advantage of trial periods though I do get attached easily; I ended up keeping the Omen DW.