Thank you! I've been struggling to find more anime like these. I'll take note of these titles.
I've already watched Grimgar, Future Diary and SAO. Future Diary, or Mirai Nikki, made it to the list of anime I loved if you check my earlier post. It's definitely both romance and insanity. I love it! I really like Grimgar, and I'm waiting for a continuation of the story, guess I forgot to add it to the list. SAO, well it does fit the description up until they were able to escape that death trap of a game. When they escaped, romance suddenly became really slow, and then it became something similar to a harem. It's still awesome though but I wouldn't give it 5/5 points. Hahaha.
I haven't tried watching a reverse harem yet. Maybe you could recommend a really good one? You made me curious about whether I'd like it or not. Haha.