Please let me know if you have any kind of Network topology to suggest so that I can practice the knowledge acquired from here. I am currently following your CCIE enterprise course. I am CCNA and CCNP certified with your books and would like to crack CCIE as well with your wonderful course materials. For this to happen I like to practice with a decent topology if am not wrong.
Take a look at this lesson:
In it, you’ll see some examples of topologies you can use for your CCIE studies. I know that this particular lesson deals with CCIE R&S and not the newer exam, but many of the principles are the same. Other than these topologies, working on those that are described in the lessons is also meaningful and helpful.
There is additional information that is helpful for preparation found in Unit1 of the CCIE Routing and Switching course:
Once again, although this is for the old exam, the principles involved in the preparation are still valid.
I hope this has been helpful!