What kind of meditation course helps with anxiety?

A course that works with the body first tends to help most, because anxiety usually shows up physically before you can think your way out of it. Breath focus and body scan give attention somewhere concrete to rest, and a course lets you build that skill over several sessions rather than reaching for it only in a difficult moment. In StillMind you can build a Goal-based course around calm and stress, describing in your own words what you want to change, and every session stays anchored to that. A Techniques course centred on breath focus works well for the same reason.