You may want to look up the Microsoft SideWinder Strategic Commander; it's basically a joystick with a sculpted left-hand mouse shape and buttons that don't require much finger movement to reach, and the centering spring force is quite light.
Said buttons have that clicky tac switch feeling to 'em - a little more force needed than clicking a mouse button, but considerably less than, say, an IBM buckling spring or Cherry MX Black.
It's really a nice device, and perhaps Microsoft mismarketed it by pursuing the RTS audience instead of the FPS audience (MMORPGs weren't a thing yet, but also another genre where the Strategic Commander shines).
However, I found myself not really using mine since it couldn't be used as an analog joystick in most games (Strategic Engine only allows for KB+M emulation), and for digital input emulation, the movement is a bit too wide with square gating that leads me to accidentally drift into diagonal inputs. Perhaps I should modify the gimbal mechanism to rectify these faults...
Oh, and now that I see one of the above posts rattling off a bunch of potential devices: don't buy Oculus Touch just for playing typical PC games, it's useless without a Rift HMD to interface with and won't work at all. (VR is pretty dope, though.) You'd be better off with a PS Move Navigation Controller and a Bluetooth adapter if that's your objective.