Hello, Andi_d78,
Thanks for using Apple Support Communities, it's great to have you here.
While we aren't able to recommend a specific workout type to meet your needs, we want to recommend that you check out this resource which goes over all of the options available to you: Workout types on Apple Watch - Apple Support. We would specifically like to point out the section titled "Other" in the list of available workouts at the top of that page. That section goes over how you can do a custom workout when you aren't able to find one that precisely matches your activity.
This article here will make sure that you are getting the most accurate readings possible during your training sessions: Get the most accurate measurements using your Apple Watch - Apple Support
If you're still looking for a little additional support, we would recommend that you contact Apple directly so that you can work with an advisor who specializes in the Health features of your Apple devices. They may be able to assist further from here. You can start by reaching out here: Contact Apple Support
We hope that this information is helpful.
Have a great day!