What sort of routine have you been on up until now? Are you comfortable doing all the lifts?
If you've been doing some kind of 5x5 setup (moderate reps, several sets, 2-3+ minutes reps between sets), the balls to the wall nature of the Rest Pause template could be a great change of pace. You'd probably grow some muscle just from that.
Down sets after heavier work, rest-pause or "cluster" style training, and high rep squatting in general are useful weght training "concepts" or ideas.
I tried Doggcrapp years ago, but didn't "get it." I couldn't figure out weights and reps to make it "work." This template looks like it could lead you right along, through the process with no guess work.