Definitely "Artiste", it's so good!
"I'm Mortal" has a similar vibe (it's an indie webcomic tho)
Shit ton of lists, they aren't exactly what you are looking for, but what you're looking for does fall under what they cover (bromance), some comics in these lists will be just strong friendship, some will be unintentional nl subtext, some will be very clearly BL subtext and some are just straight up obsession of ML with Male MC.
https://www.mangago.zone/home/mangalist/552235/
https://www.mangago.zone/home/mangalist/33627/
https://www.mangago.zone/home/mangalist/27607/
https://www.mangago.zone/home/mangalist/22678/
https://www.mangago.zone/home/mangalist/124687/
https://www.mangago.zone/home/mangalist/150233/
https://www.mangago.zone/home/mangalist/187833/
https://www.mangago.zone/home/mangalist/17634/
https://www.mangago.zone/home/mangalist/42567/
https://www.mangago.zone/home/mangalist/76646/
https://www.mangago.zone/home/mangalist/7015/
https://www.mangago.zone/home/mangalist/9090/
https://www.mangago.zone/home/mangalist/226060/
https://www.mangago.zone/home/mangalist/266037/
https://www.mangago.zone/home/mangalist/308966/
https://www.mangago.zone/home/mangalist/59923/
https://www.mangago.zone/home/mangalist/1959556/
https://www.mangago.zone/home/mangalist/1962665/
https://www.mangago.zone/home/mangalist/2489102/
here my list https://www.mangago.zone/home/mangalist/2463400/
i need subtle vibe to feed my delusional like it is up to the reader to interpret the bond by themselves. eg: banana fish, moriarty the patriot etc. they are few i have read like old manga but idk where to find more so i need suggestions! pretty please. (currently watching ron forbidden detective thats why im kinda in the mood)