Band assisted pull ups are a great way to build up your pull-ups and work your back muscles (lats).
You can use different resistance levels of bands to progress or regress your training as needed.
After I had a bout of tennis elbow which lasted a long time. I lost my pull up ability as the joints were weakened by the injury. So to build it back up, I use the bands. It’s easy on the joints and really works the lats/back very effectively.
Bands allow me to do movements that I would otherwise have to give up. Add bands into your gym kit for added versatility and capability. Look at how bands can work for you.