The very best way to learn is to listen to the greats and learn to play their bass lines. To get you used to what ‘different feels’ actually means here are a few examples with some further listening for each style.
Groove Free Course
Timing is everything for bass players. The metronome is a great tool to develop your inner sense of rhythm and time and this lesson contains 7 exercises ranging from easy to difficult to help you develop a killer groove.