Both seem to have reasonable Go SDK libraries, so it should be easy to create new plugins for them. I've added them to our internal backlog, but all our plugins are open source if you'd like to try building it yourself! The Linode plugin is a simple, similar example to use as a starting point [1]. We also have docs for writing plugins [2].
1 - https://github.com/turbot/steampipe-plugin-linode 2 - https://steampipe.io/docs/develop/writing-plugins