Qualities a tripod ball head should have 
1. Dragged out
A ball head needs to be stiffer when supporting a heavy full-frame body with a long lens than when supporting a light mirrorless setup. All loads are accommodated by variable head friction.
 
2. A slick operator
 Applying friction can cause some balls to start sticking, which causes jerky movement and irritation. A good socket lining and ball coating should help with this. 

3. Take control 
Unwanted camera movement can arise from clamping your ball and pan movement with locking knobs that aren't sticky enough. Lever designs and rubber coatings on knobs can be very helpful.
 
4. Plating
Although some manufacturers continue to use proprietary designs, the Arca-Swiss quick-release mounting standard is excellent for retaining interchangeable compatibility with other tripod heads.
 

FOTOWORX 360 Degree Rotating Panoramic Ball Head

It's inexpensive for a big-brand tripod head, but the Fotoworx 360 Degree Rotating Panoramic Ball Head is still rated to support 25kg weight. Build quality also feels reassuringly robust. The overall shape is slim and should sit comfortably within a tripod with flip-up legs.
 
It is constructed with a 360° panoramic head for Vlog. On the top of the gimbal, pan and tilt may be rotated 360 degrees, allowing for quicker switching between shots.
 

36mm 360° Panoramic Ball Head

This 360-degree ball head is made of a high-quality aluminum alloy, which adds to the exact CNC process, smooth operation, and fantastic reliability. The item weighs 375g. Setting the camera at the side, vertical, and horizontal angles won't be a problem at all thanks to three locking anodized aluminum knobs.
 
The ball head has a 36mm diameter. 15 kilograms is the maximum load. A 360-degree scale improves positioning accuracy and streamlines panoramic photography.
 
Having the 1/4" and the 3/8" screw at the bottom, it is appropriate for almost all DSLR cameras, sliders, tripods, and monopods. Overall, it is a great tripod head for all types of photography.
 
FAQ
• Does my tripod require a ball head?
The tripod's legs might not be of the highest caliber, but the ball head definitely should be. All the adjustments you make when taking pictures depend on the ball head. Because of this, you shouldn't undervalue the value of a good ball head.
 
• Is a tripod with a ball head better?
It depends on the type of head you pick. The design leaves minimal space for the ball head, which mounts the camera on the platform rather than what is essentially a raised platform, to be less durable than a pan-head tripod.
 
• What does "ball head" refer to?
A ball head is an add-on made of metal or plastic that sits atop a tripod. It improves stability and gives photographers the option of rotating the camera more quickly and precisely. Ball heads are often chosen by more experienced shooters because they have a simple operation and few parts.
 
• How do ball heads function?
This add-on is secured to the bottom of the camera and the top of the tripod. A ball head gets its name from the huge ball that is controlled so that the camera can be moved precisely around 360 degrees.