I was just looking for one last week and didn't see one.

Yup, there quire quite a few but I would only recommend one as it is the only one (that I know of) that is being actively maintained (and by a member of the Pulsar team) - X-Terminal-Reloaded. It is also the one I use all the time myself. If you have any issues with it then feel free to comment on the GitHub page for it or via our Discord.

We have an ongoing discussion about the possibility of adopting such a package into the main app but we are debating whether Pulsar should ship with all these standard features things like VSCode now ship with (at risk of bloat) or if it should be left "lean" and only ship with the most essential packages with a potential option of shipping "fully featured" versions of the app or a script to make it install these packages when first run. Comments on this are still very much welcome.

You can search for packages within Pulsar directly (Settings > Install) or via the package explorer website e.g https://web.pulsar-edit.dev/packages/search?q=terminal. Generally anything with a green "Made for Pulsar" badge is something actively maintained and created for Pulsar where most without that badge were created for Atom and many no longer actively maintained.