 If you liked
Kyokou Suiri
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 ...then you might like
Dark Gathering
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A loli girl and a couple trying to deal with various evil spirits, ghosts, supernatural issues and hauntings, while also investigating as to why the various hauntings happened in the first place so as to properly resolve it. With the help of other spirits and their own powers.
While both animes have their own comedic, lighthearted and dark moments. Dark Gathering was generally more grim while it's art and tone appearing to be light and humorous at times while In/Spectre have a more mature and serious tone and art but was generally more light hearted and less dark.