Welcome to the forums, hope you enjoy it here. Love your avi, by the way: looks like the Apple logo, then when you look closer you can see Ryuk’s profile.
Of the series you mentioned, Cowboy Bebop & Fullmetal Alchemist are shorter, so you can finish them quicker. Cowboy Bebop is one of my all time faves. Fullmetal Alchemist has 2 versions that have some similar scenes, but wind up being very different stories. I personally prefer Brotherhood, but some people like the original better. Each version has a separate movie as well.
It looks like you’ve watched mostly shonen titles. A couple of the most popular right now are My Hero Academia, Dr. Stone & Kimetsu no Yaiba. Some others I enjoyed are Ushio & Tora and Buso Renkin. For something similar to Death Note, try to find Monster somewhere for it’s battle of wits (The Promised Neverland will probably work too). For series with scheming/manipulative MCs there’s Code Geass, Overlord & Saga of Tanya the Evil.
Anyway, hope you stick around