Hello @Staf_Smith ,
The Angular-Cesium library is a pretty good library for using with Angular applications and it is currently the most popular in the open-source community for integrating Angular with Cesium. However, it seems that progress has been stalled for a while as you can see in the repository issues.
Importing cesium directly and using it as a standalone module is also a valid case if you want to, especially if you want to have better control of the integration with Angular. You can have a look in this repository on how to achieve that.