Is there any novel about 2 people married in the past then met each other in the future/modern era? They remember each other and immediately clicked or got together again and they can be hiding that they know each other or that they’re together. Doesn’t matter if it’s bl good example is Sweet Finale to a Lifetime of Quick Transmigrations
Evil-Natured Husband, Don’t Tease! The only one that I've found. Unfortunately, it's already dropped. The FL was actually an Empress in her past life and transmigrated to the modern days. As wife of CEO, that's the ML. And actually, ML is the Emperor in her past life. He didn't remember that at first but he gradually will. And, they start to clicked together right after ML noticed FL changes. Warning!: There's will be dog fight. Also, the 2nd ML remembered through his dream that he do connected to both lead couple in past life.
Reborn with an Old Enemy on the Day of our Marriage This is BL and I haven't read it but many have recommended it so here it is .