Not similar at all, if my goal was to use something longer term 6-8 weeks and build some actual muscle then I would pick tbol, I feel like it's similar to anavar, not as good on a cut as anavar, but better for performance based training.
If my goal was to bust through a strength plateau, or working on peaking my strength and use was gonna be short use scenario 3-4 weeks I'd pick dmz. Or if I was trying to gain weight fast for some reason I'd pick dmz too. Similar to SD, but slightly weaker and potential for water retention