Istio has gained lots of traction in the Kubernetes space. Here is a compiled list of interesting talks on Istio.
Kudos to Lachlan Evenson for creating this content:
Setting Sail with Istio
Istio - up and running by Lachlan Evenson
Istio - adding services to the mesh by Lachlan Evenson
Istio - Working with Ingress
Istio - Working with Egress
Istio - Request Routing
Istio - Fault Injection Testing
I hope you find something useful in these resources.