Being inspired by Paul Gonet's answer and Ricardo Roehe's answer I realized that if you like the mouse scroll method you can use the mouse for the other frame navigation methods too!
Here are some examples... (customize to your liking)
Location: Preferences → Keymap → Frames
Jump 10 frames forward / backward
ShiftAltWheel Down / ShiftAltWheel Up
Jump to next / previous keyframe
CtrlAltWheel Down / CtrlAltWheel Up
Jump to end / start of playback range
ShiftCtrlAltWheel Down / ShiftCtrlAltWheel Up
Note: I could not find commands in the Keymap Preferences for Next / Previous Marker. I'm not sure if they still exist in 2.8+
Hopefully some will find this useful, as you can leave your hand on the modifier keys instead of having to move it over to the arrow keys each time you want to move along the timeline. A configuration like this seems to allow the shortest keyboard travel time.
Note: When configuring shortcuts, checkboxes for "Next Keyframe" or "Last Frame" etc. are greyed out by default. You must click to interact with them to make them active, otherwise these shortcuts won't register. In other words, greyed out does not mean FALSE.