G23 V2

I picked up the incott g23 pro off aliexpress, basically a GPX clone, for $50. I would go as far as to say its a better mouse than what Razor and Logitech are charging you triple for. Just the hotswap feature alone is a huge selling point, easy access to swap out the switches to make your clicking sound however you want. I never bothered with the web driver software as you can changing polling speed on the bottom of the mouse, and there are a few extra preset DPI options rather than large jumps from 1600 to 3200 like you usually see. Also personally just went with the 1k polling option because I dont play FPS and even if I did, trying to squeeze something out of the already fast 1ms response time isnt worth it for the extra CPU usage and drain on the battery IMO.

You need mice that suits your hand size and gripping habits. You had a viper which is a medium to large mice and this is probably why I would say the Inca and X2 CL medium are quite small comparatively and is more suited for medium sized hands. A Rapoo VT7 max will be similar to the viper shape and size, ATK A9 or incott g23v2/V2 pro or Lamzu Maya X will be the mice that fits medium to large hands with all grips(except palm for larger hands).

Practice and shape are most important. GPX clones are a safe place to start, Mchose A7 V2, ATK A9, Incott G23 V2. If you prefer a bit larger but still symmetrical, there are Viper clones, but I've only used one so far, namely the Eweadn S9. If you want larger ergo mice, my current main and favourite is the DeathAdder V3 Pro if you can find it for that much, otherwise if the wire doesn't bother you the regular V3 is the same but cheaper. If you need more buttons and don't mind the weight, Basilisk V3, I tried the G502X but the Basilisk felt better for me.

In general if you are talking about Chinese premium mouse, shape irrespective, it should be the Lamzu thorn or the Maya X. If you want to consider only budget brands then Incott G23 V2(the Ghero pro is my fav tho), Scyrox V6/V8 and Rawm ES21/ER21 pro from my experience are the best especially in terms of general quality, tech, sensor perfoemance and QC. Followed closely by Mchose L7/A7/M7 and VXE mad R variants.

Incott g23v2 is pretty cool, all but the standard edition got hot swappable mouse switches, superlight shape, in the ~50 gram range