I recently tried Outemu blues for the first time myself, on one of those cheap bargain bin boards from Amazon. It is an Easterntimes l-600, so basically the same chassis as a bunch of random Chinese brands. The build quality, with an aluminum exposed plate, is surprising for its price. I haven't tried Gaterons, so I can't compare against those, but the Outemus are the best Cherry-like clickies I have tried, much crisper, tactile, smoother, and less rattly than Cherry MX themselves. I doubt you could really go wrong with anything with a large number of decent reviews, with either Gaterons or Outemus.
Stay away from the AK33. The features are nice, but those "Ajazz" switches are literally trash, the worst Cherry clones I have had the displeasure of trying.