To reduce mouse hand travel I got a roller mouse pro slim about 6 months ago. Not great for fine motor tasks but exceptional for other general uses. Alleviated a lot of pain in my hands and fingers.
I use this with a small slim keychron keyboard and with a kinesis advantage 360.
The roller seems to be getting a bit sticky after 6 months of heavy use and transporting it between work and home. Nonetheless, would get another in a heartbeat.
Roller mice are great. I also set up my keyboard such that I can hold down a key and use WASD to move my mouse, with J being left click and K being right. That's been a game changer for me, too.
I use this with a small slim keychron keyboard and with a kinesis advantage 360.
The roller seems to be getting a bit sticky after 6 months of heavy use and transporting it between work and home. Nonetheless, would get another in a heartbeat.
Perhaps worth a look?