Birth of a New Day is one of the greatest of all time for its genre and sound but fortunately the artists involved in making it also made lots of other albums. I believe the artist 2814 is collaboration between HKE and Telepath. There is a lot more from both of them

These are some of my favorites:

Room 2814 - 2814

Lost Fragments - 2814

Rain Temple - 2814

HK - HKE

This - Hong Kong Express

Hong Kong Express - Hong Kong Express

Building a Better World - 猫 シ Corp. & t e l e p a t h テレパシー能力者

愛慕 ／ 悲哀 - HKE and t e l e p a t h

Gateway アセンション - HKE / t e l e p a t h テレパシー能力者

一緒に別の夜 - t e l e p a t h テレパシー能力者

I could keep going but it would be easier for you to just check the discographies of any of the artists mentioned. Check the discographies of any artist they collab with too