Micca, Edifier/Swan, I guess?
The problem with speakers is that the drivers and crossover can be dirt cheap; the real cost is in the cabinet and shipping the blasted heavy things. You’ll find great deals for bookshelves, but you gotta add on a sub to get their worth–luckily, some $100 are banging deals.
Koss can get away with fairly good drivers tacked on to a cheap build, and honestly the prices for Koss gear have risen like two-fold due to popularity.
I think the best deals you can get in the speaker world is DIY. You can get really nice kits from Partsexpress and with some tools or just knowhow you can assemble some rocking speakers. There’s also the Hivi 3.1A DIY speakers that Zeos put together, but he didn’t do the “perfectionist crossover” mod so that’s why he’s not in love with them. You can also go far-far deeper into this world by dual amping and use a miniDSP as a crossover.