Read these two in this specific order, tho not a sequel they're kinda connected, also don't be put off by the art at the start, it changes for the better in just a few chapters :
Song of Reverberation
https://www.mangago.zone/read-manga/song_of_reverberation/
The Promise
https://www.mangago.zone/read-manga/the_promise/
L and Light arc is legendary frfr
As much as I personally dislike them (admittedly, nothing is inherently wrong with them,) both Code Geass and Moriarty have that tension;
https://www.mangago.zone/read-manga/code_geass_lelouch_of_the_rebellion/
https://www.mangago.zone/read-manga/yuukoku_no_moriarty/
There’s also this one, which I have been enjoying, but translations have slowed to a halt as of late;
https://www.mangago.zone/read-manga/brutal_satsujin_kansatsukan_no_kokuhaku/
I as death note lover i highly suggest this manga , mc has same brain capability as light and there is no romance as well -
https://www.mangago.zone/read-manga/ajin/
anything like deathnote? generally just the over all feel of it like the tension between L and light in “catching” eachother and just an interesting plot line IDK