If I was brand new and don’t know where to start with the amount of information that is there, I will start with the year reviews. I am not sure if this was done on the previous forum, but since the forum transitioned to this website in 2022, @pfm makes a yearly review which gives you a snapshot of all of the highlights in each category.
These basically is a great overview of all of the best things discussed on the forums.
Other than these:
My personal bookmarks:
Giant Japanese Market Thread
Master List of Rarest Pokemon Cards
Most Recent Purchase
For inspiration (and what personally for me is the true essence of E4):
Index of Elite Forum Collections
A Friendly Space for species collectors
E4 art contest (This is for 2023, but there are other thread with previous editions)
E4 Secret Santa (2023 Edition)
Giant Art Thread
Extensive Lists for collection
List of TCG Cameos (English)
Artist Collectors of E4
List of all TCG cards that exist for a specific Pokémon
Fun Reads
Unpopular Opinions
E4 Memes
These are just some of my own personal threads that I spend the most time on. I am sure others will also recommend a lot more. In the end you can easily keep digging and keep finding so much more information. Happy reading!
Cheers!