If you're looking for anime similar to Love Live! School Idol Project OVA, you might like these titles. All recommendations are made by Anime-Planet users like you!
To start off these are both Idol OVA'S which aired at the end of the series and are honestly a bit of fun, there isn't much story in either but both are still enjoyable. However unless you have seen the main series you might get slightly confused about what is going on. To conclude if you like idols and enjoyed one of these OVA/anime then you should enjoy the other.