please give me some recos before holiday break ends 🥺

can somebody please recommend me some action survival animes that has a tinge of romance with it and no to reverse harem or anything harem!! and no magic or sorcery of any sort if possible (but if it's not exaggerated, and more realistic i wouldn't mind trying) 😊 has great art and attractive main characters, i don't mind if it's an old anime as long as it has great graphics

recommendations that are hopefully similar to 86, spy x family and Btooom! which i really love, thank u so much, and I'd love to hear some recons bc I'm in an internal struggle big time bwhahaha