My favorite way to exercise is...
I like to stretch. It is satisfying as in the end you feel like your body has improved a little bit. With every day I stretch I can bend a bit lower and with a more straightened back towards my knees. Also I think stretching could be something better than self-harming or other types of destructive habits as it causes some level of physical pain but the results are productive.
@placidHuman2665 I'm a stretcher as well. It feels good.
Working out is nice. Playing Tennis is my favourite form of exercice though.
Rock climbing, Hiking, Yoga, and Running
With the VR.
That's a lot of fun to use. You'll get so distracted that you don't even realize the pain from exercising. 
To go to the gym and use the elliptical. I love it. And it's something I have in common with the person im in love with.
Dance around
Martial Arts
HIIT. It's intense, it's quick and I like it a lot better than steady state cardio (it just kinda bores me).
Ride a bicycle. Over 4500 km in 2018!
Dance. Yoga. Hiking/ walking.