I’m not aware of any plants with an affinity for coffee grounds specifically. My goal is general health of the soil through increasing organic matter and promoting microbiological activity with available nutrients. Spent coffee grounds do a good job because it has a nicely balanced C:N, pH and a decent kick of macro and micro nutrients without first needing to be composted to prevent burn or mixed with other yard waste. That being said, all things in moderation and balance.

Thanks for the comment/good question! I hope this helps.