FK1

It depends on the type of gaming mouse. When it comes to the mice being used for CS, the main difference is sensor quality. I mean, I got my Zowie FK1 sometime around 2016-17 or so, so the tech may have improved since then for regular mice, but back then, gaming mice just had way better sensors. And then, you also get to choose the actual shape of the mouse (something ergonomic vs the classic microsoft mouse shape for example). When it comes to MMO/MOBA mice, you also get tons of additional buttons on the mouse. As it has been pointed out, weight and switches are also a factor, but I actually never gave it too much thought. When I got my Zowie I only really cared about having a top tier sensor and a classic microsoft mouse shape.

If it's longevity you're after, I've been on the Zowie FK1 since the collab with Neo (I'm thinking it was around 2014), and I still use it till this day. Still fully functional. I'm gonna guess that FK1 is not produced anymore, but maybe FK2 is.

Razer Copperhead - later IME3.0 and Zowie FK1 for years

ZOWIE FK-1 maybe? It's their biggest one for large hands.

only mice i can think of big enough is the final mouse classic (large size) m, zowie fk1/fk1 +, or S1 at the cost of weight though and the s1 has a larger hump which could hinder finger mobility, then there's the pwnage storm breaker max which is a lightweight ergo but i've used the grip you're using aswell and ambi imo is just better for it

Something with the shape of the fk1 if you can’t find a fk1

FK1 in the past, now Maya X