Beside or Besides?
Your choice!
Beside
Exemple : ‘’There is a spare seat beside me.’’
The words "beside" and "besides" are often confused although they have different meanings and uses. "Beside" is a preposition used to mean "next to" or "at the side of."
Besides
Exemple : ‘’What food do you like besides pasta?’’
"Besides" can be used as both an preposition and linking adverb. It is used as a synonym to the words "also" and "as well as."