Reddit reviews Combatives for Street Survival

I disagree. I don't want to start an internet fight, but I think most of DL's stuff is garbage. Much of it made-up marketing BS that doesn't stand up to trial and execution under hostile (non-cooperative) training scenarios. I'm with everyone else, live training is best. But in the event that op doesn't live in a town with a Krav gym in it, a training partner and a book/video combo could be a fix. Alternatively, a different style gym in town would be better than the book. BJJ, Muay Thai, whatever. Krav is too wrapped up in the various cults of personality, notwithstanding in answer to op's question: Kelly McCann has a decent book:
Combatives for Street Survival https://www.amazon.com/dp/0897501764/ref=cm_sw_r_cp_apa_i_IEZYDbA0EQN2S
And even tho the guy is a tool, Mike Lee Kanarek has an interesting, fairly simple curriculum with decent technique.
Fight To Survive!: Hardcore Self Defense Against Armed and Unarmed Attack (Volume 1) https://www.amazon.com/dp/0972820914/ref=cm_sw_r_cp_apa_i_vGZYDbT4KG9YT