So...
Madness. The plot is interesting but the art is quite of really bad (if you convince yourself the priest is a man, you mighg enjoy it. Well, it's an old bl so I suppose that's why and would love to read a redrawn version of this.)
Smile from Penguin Frontier (only on MRM) it's shounen ai and really good. Full color but the presentation is manga-like.
Wild wind, wild fangs, wild rose serie. Quite interesting plot.
Sakoku Ren'ai. The plot is quite good and the drawing is better than my first recommendation. xD
Mangetsu no ou, suoer interesting and the artstyle is quite particular which fits the story really well.
Aoart from the one on MRM, I tried to give you some old and less romance-based mangas,with a bit of luck, there will be one which will pick your interest.
Feels like I can't find anything interesting to read anymore. Anyone who has any recommendations? Preferably manga, have a harder time reading webtoons. I already have ~1100 titels in I'm reading/already read, so give me something you don't think many people have read! :)