Mahou Tsukai no Yome
Kanata Kara
This is amazing. Another classic if I do say so myself. It has everything anyone that likes long shoujo manga could be looking for. The relationship is amazing and it progresses very well with the story. You'll end up being the #1 shipper of the main characters. You'll become emotionally invested. You'll feel genuinely happy from their heartwarming moments. You'll feel like you want to fix everything when things looking dark. You'll become a mom lol.
Rokudou no Onna-tachi
A manga full of strong women
Kuroshitsuji
If you like mystery, horror, or other creepy shit but you don't feel in the mood for something overwhelmingly dark then this is the story for you. This manga has an amazing balance between supernatural mysteries and comedy that make it possible for you to enjoy the story and binge all the chapters.
Fairy Tail