(I'm one of the core developpers of awless).
We are going to add filters and queries very soon. We built awless by relying on RDF to represent the cloud resources. As a result, in addition to simple filters on the properties, we can also represent more complex queries such as "everthing inside a VPC", "the siblings of an instance", etc. Try the `awless show` command to have an insight of what we can do.