Toki wo Kakeru Shoujo, Boku dake ga Inai Machi Recommendations
Both these series play with the idea of time travel and its consequences. Both deal with interpersonal relationships as well as the loss of a loved one really well. Honestly, both had me on an emotional roller coaster and were good at investing the viewer into their world. They reminded me of each other not only plot-wise, but atmosphere-wise as well. If you like one, try the other.
Both tell about time traveling and the purpose of it is to make up some mistake in present time to avoid some horrible event. Even though TGWLTT is about daily life and Erase about some criminal event in the past.