Very early days but my top 5 of 2018 so far are: Annihilation - A Quiet Place - Infinity War - The Guernsey Literary and Potato Peel Pie Society - First Match.
First Match seemingly flew massively under the radar of everybody, it's a Netflix original film that came out in March and hasn't even reached 1000 votes on IMDb yet. Thought it was a really good little film myself. It's set around a teenage girl who has recently been adopted after her drug dealing father was arrested, when he gets out she tries to reconcile with him and joins the boys wrestling team as her dad is an ex-wrestler himself. The sporting aspect of it is a fun watch but the performances of the girl and father and their strained relationship are what make it really good.