Women have a dual mating strategy
This is old news
Just be the stud. That's the best no-BS advice
Rollo Tomassi is cringe as fuck, but his 1st book is ok. It leads a lot of guys astray though, getting stuck in 'anger' phase and doing retarded shit like defining themselves as mgtow.
The old-school PUA guide 'Mystery Method' is pretty thick on theory on evolutionary psychology as it can be practiced with women.
A better book to read, especially if you're a bit of a nerd, is Evolution of Desire by David Buss. He's one of the world's preeminent evolutionary psychologists, for whatever it's worth
Seriously dating single mothers should be out of the question. It's self induced retroactive cuckoldry. Even banging them is a no go for me. It's the equivalent of eating the leftovers from another table at a restaurant. Just gross.
At the end of the day, reading shit won't help you though. Getting your fashion/hygiene up, going outside, and improving your dating skills will.