Comment by Aldipower
Do not reinvent the wheel. Build components on top of an existing component library such as Material UI for example. This way you can utilize an already existing and known approach and ecosystem and just need to extend it to your needs.
Whatever the approach the problem is still valid. The existing component library has be extended for on brand customization, and recurring UI/UX patterns used by the designers. You still have to spread knowledge to allow good re-use that ease maintainability, increase consistency and overall quality.