
Logitech G
G600 MMO Gaming Mouse
Customizable MMO workhorse, durable, but discontinued and pricey.

Running these analyses costs money. Buy through my links to help keep lights on! I may get a small commission.
Oh this is my specialty! I only use mice with heavy clicks. My recs: Lamzu Atlantis, Endgame Gear XM2, any Zowie mouse, some Steelseries mice (the Sensei 310 has heavy clicks), oh and also its been a while but I remember both the Razer Abyssus and the Razer Naga having pretty heavy clicks I think.
Oh I actually made a typo I meant the XM1! I'm sorry. I was going to edit my post to fix it but I assumed the XM2 and XM1 had the same clicks. Whatever the XM1 version 1 that came out back in the day had were STIFF, I'm serious! I haven't tried the XM2, I assume they are all stiff though since most people that I see talking about ANY Endgame Gear mouse mentions the stiff switches.
Interesting, I got mine back in 2018 with the Omron 50m switches. I know for a fact that the Omron 50ms are a bit stiffer/more tactile than the Omron 20m that are in a lot of Logitech and Glorious mice, but yea I mean I would consider the Huano Blue Shell Pink Dots in my current mouse (Lamzu Atlantis) to be slighter stiffer. Really I'm just surprised you would consider the Omron 50m to be a light switch.
I had the "Legendary Edition" mouse that came after the Cataclysm mouse, after it gave up the ghost I found the Logitech G502 was the most natural mouse to move to. Similar shape and Vaguely similar button placement.
In my experience the Sensei 310 has very light clicks. I recently bought a Rival 5 as replacement but had to send it back because the button clicks were too heavy for my taste and certainly compared to the Sensei 310.
I use the SteelSeries Sensei 310. Rated "Best ambidextrous gaming mouse".
I have the steelseries 310 mouse since 2016 and it still works perfect. I have a superlight 2 but on my gaming laptop i still use my 310 and no issues despite gaming with it since 2016
Many pros are drawn to EC shapes. The only other ergo that wasn't an EC clone and managed to dominate the scene was Rival 300/310.

Logitech G
G600 MMO Gaming Mouse
Customizable MMO workhorse, durable, but discontinued and pricey.

VXE
R1 Series
Budget king: lightweight, great value, long battery life.

Hitscan
Hyperlight
Ultra-light (39g) for small hands; sensor is outdated.

Razer
Viper V3 Pro
Adaptable shape, optical clicks, but scroll wheel malfunctions.

Logitech G
G502 HERO High Performance Gaming Mouse
Durable, heavy workhorse with free-spin scroll; prone to double-clicking.

Ranked #1
Hitscan - Hyperlight

Ranked #1
Teevolution - Terra

Ranked #1
Razer - Viper Ultimate

Ranked #1
ROCCAT (Turtle Beach) - Kone Pro

Ranked #1
Logitech G - G600 MMO Gaming Mouse

Ranked #1
Razer - Naga Trinity