I recently found this duo - tokimeki records and hikari. I like their modern twist on classic songs. Similar recommendations?

https://youtu.be/6gjqY9W7tj4?si=e-NNrD\_UvKASzB1w

This link is an example of their songs. I like how it doesn’t sound too modern. The instruments sound great and her voice is well suited for this type of song. It doesn’t seem too overproduced and not too electronic like. I think she might be an underrated vocalist and I hope they make more music. Any similar artists that sound like this you’d recommend?