Is there an analogue of the a4tech office 8k mouse?

Question

Iron

I'm looking for an analogue of the mouse A4Tech Office 8k or A4Tech BW-5 UP
Mandatory condition: the presence of two buttons on the sides of the scroll wheel and 2 side buttons under the thumb.
Who met these? It doesn't matter Chinese or branded.

Answer 1

Is the location of the two additional buttons near the wheel fundamental? If they are to the left of the left button, below the wheel or also under the thumb, will it work?

Answer 2

the mouse is just super, I actively use its multi-button functionality every day, which ensures faster work. I even made some hardcore improvements on the operation and location of the buttons on them, and also wrote software for it. and I myself have long been thinking about a reserve in case of its failure.
Unfortunately, I have not found a full-fledged analogue for several years of searching. the only close functional "brother" is a mouse with an additional numeric keypad on the side with 8 keys in my opinion, and it costs about 3 thousand rupees, but it's still not that coat.
so let's wait and hope that in the future, instead of this two-button junk with which the storefronts are heaped up, something worthwhile will appear like 8K.