Some assorted ideas.

• Left to Right.
• Start with sphere or cylinder. Place Ends. Push Pull. Loop Cuts.
• Proportional Editing.
• Curve Modifier. Example Curve in Red.
• Sizing to Curve. More proportional editing
• Modify Twist on Curve.
• You can be more artistic than shown below
• Arrange to sphere not shown

Some assorted ideas.

• Left to Right.
• Start with sphere or cylinder. Place Ends. Push Pull. Loop Cuts.
• Proportional Editing.
• Curve Modifier. Example Curve in Red.
• Sizing to Curve. More proportional editing
• Modify Twist on Curve. Consider Shrink Wrap Modifier to sphere for curve only. Not Mesh.
• You can be more artistic than shown above
• Arrange to sphere not shown