The standout expansions coming up in order of appearance are:
1. Depths of Darkhollow - you explore and underdark expansion with great models/graphics, you fight Mayong and you get Demiplane which is the first big jump in real raid complexity.
2. The Serpents Spine - A massive expansion with two full raid prog lines and two end zones. This whole thing is like a love letter to classic EQ complete with Gnolls, Orcs, Dragons, Giants and Zombies. 10/10 expansion.
3. Secrets of Faydwer - Two major end game raid zones, and amazing battles with Meldrath and Kerafyrm (The Sleeper). Great raids, 10/10 expansion.
The downside is you need to get through PoR which is just pure dogshit start to finish and The Buried Sea which is pretty fun but it’s like one week worth of content stretched for 8-12.
Honestly every EQ fan owes it to their self to do TSS and SoF at least once. It essentially caps off the old storylines and they’re incredible expansions that have the old school feel.