The best harbour to scout are the ships in the two main docking bays in the wheel you live. You can find the status of the ships docked their in the main console. Ships docked in these two bays are provided with diagnostic checks upon arrival and once a week. You can find the results of those checks in the logbooks. Additionally, you can find the origin of the spacecrafts. I suggest you pick one from either Sagranda or Atrabo. These are the two nations with the most humanlike inhabitants. If you pick the wrong craft, you might find yourself in need of tentacles or the ability to turn into slime.
[Some alien hyroglyphs] is a reliable manufacturer of civilian crafts. It is fitted with controls that are known for its ease. For the mere use of space travel, their ships are the best you can get unless you decide to get a custom build model.