Ahh I feel you
You should give this a try
Code Geass Lelouch of the Rebellion
also more Death Note content (no animes tho)
Death Note Special OneShot
Death Note Another Note The Los Angeles BB Murder Cases
I agree with these recommendations.
There aren't many anime / manga exactly like death note unlike a lot of general well-liked genres like isekai, shounen, etc. Not due to the fact that it's not liked, it's very liked; just hard to execute well IMO.
Code Geass is probably the closest in my opinion, although there are other Ani-Hero Anime in which you can find here:
https://anilist.co/search/anime?genres=Anti-Hero
Some of my personal recommendations would be these (in terms of the Anti-Hero Genre):
Like Death Note, the MC's are pretty smart and the animes have a lot of strategy, etc. The context of the anime and the world in which they are set in differ a bit but overall they still keep the whole anti-hero theme going well.