I personally do not suggest a spell or charm for such. Magick doesn't need be involved in everything. There are some who work with this kind of magic and are successful, but it is tricky and you must be precise.
However, why would you want to try to force someone to like you? The feelings would be be genuine.
Always try natural ways of getting someone to like you before you consider magick.
Meditate on being yourself, putting out a higher energy out there that is magnetic. Think of blue, is my opinion and that mind set, it's called being classy and giving a smile that is just spell-bound. Develop a spell-bound smile and win almost anybody over. Do this while sending a few dreams towards that person's way will boggle their world.