 If you liked
TiG-HuG Planet
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 ...then you might like
Tokyo Photograph
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Both mangas have a girl that like helping people and acts like a mom. She wants to find a love interest, and eventually does. In Tig-Hug Plant, it's a transfer student she just can't help but help, and in Tokyo Photograph, it's a person she meets when she goes to Tokyo during a vacation.