If you are looking for picturebooks to suit a specific theme or fulfil a specific need in your class, have a look at the below links. Have a browse but do bare in mind whereas most recommended books will be worth your time, not every book will be suitable for EFL language teaching purposes.
Little Parachutes is the first place to check if you are looking for picturebooks to help children with life’s emotional challenges. Their reviews are very good, the selected books are current and aimed to ‘help children cope with worries, health issues and new experiences (big and small).’ www.littleparachutes.com
This website offers a rich collection of books created for the UK primary curriculum. It might be a little overwhelming when you first look at it but go straight to ‘Topic Book List’, many picturebooks are included in their suggestions. www.booksfortopics.com
If you are based in the Netherlands are looking for booklists for your primary children, have a look at this not-for-profit project and its bookslists.
Founded in 2012, this project has ever since promoted reading English at primary level in the Netherlands. Its booklists are frequently updated and have offered many schools a helping hand when starting up their own English school library. www.littlelibrary.nl