Did you attend flatMap Oslo? flatMap is a Functional Programming conference with a focus on Scala and the Java Virtual Machine which took place in Oslo, Norway from 3rd - 4th May 2018. They had a great list of speakers including Jakub Kozłowski, Eric Torreborre, John A. De Goes and Luka Jacobwitz.
If you unfortunately missed the conference or you're just looking to have a recap then take a look at Jakub Kozłowski's talk on 'Fantastic Monads and where to find them', enjoy!