I'm sorry to say I don't really have a comprehensive resource--it's all stuff I've pieced together from various primary and secondary sources and a fair bit of experimental archeology, not even all from the same cultures or time periods. It's a whole rabbit hole. But the routine I've worked out are pretty straight forward: Shampoo only when you need it, plenty of brushing with a wood, bone, or bristle comb. The occasional egg and honey rinse to boost strength and shine, and sometimes hair oil on my ends if my own scalp's production just isn't cutting it.

I do braid my hair before bed, partly to prevent tangling and partly to keep it out of my way while I'm doing my nightly toss-and-turn (I will roll on top of it, turn my head the other direction, and end up pulling my hair.) Some people do braid their hair while it's still damp so that it will have lovely even wave once it's let loose, but I have so much hair that if I braid it damp, it will take days to dry. So I just give it a light spray down before I braid with products I'll mention a little further down.
But I do always use a ribbon to braid, whether I'm just braiding up for bed or planning to wear it out. Once you know how to do it, it's as easy as using an elastic, and much better for your hair.
Morgan Donner has a beautiful, in-depth video on using ribbons for braids which includes my preferred method (around the 15 minute mark) and a few others. And you can trust her, she has gorgeous hair.

"Wet setting" refers to a variety of styling methods that involve moistening the hair and then forcing it to dry overnight in a particular shape, usually curls. It includes things like rag curling, pin curling, foam rollers, and the aforementioned braid waves. Unlike heat-styling, it does not damage your hair-and using quick, simple methods like braiding can even help get it to lay nicely and not tangle, so it's easier to style and takes less damage.

The interdoots are full of good wet-setting videos from a variety of magnificent vintage ladies. I'd start with Loepsie. She doesn't have the practise and expertise of some of the vintage ladies, but she tries a lot of different methods, and her results are usually more relaxed and modern. Because I'm assuming you don't want to look like your great-grandmother.

As mentioned, I can't wet-set from fully damp hair because it'll never be dry, so I mist my hair with a mixture of rosewater and aloe vera. If you're going to use it every night, you can save money by making it at home, but there are a lot of rosewater/aloe blends out there being marketed as facial mists and they work fine. If you want something super powerful made with ingredients whose names you can't pronounce, Lotta Body is your shit (but please dilute a lot, especially if you have fine hair.)
But, there is also absolutely nothing wrong with using plain water for wet-sets, whether it be by setting thoroughly towel-dried hair, or by misting dry hair with water before setting. Your results will just be a bit softer and have less body, which... might even be a good thing because with wet-set curls you can easily end up with more volume than you actually want for a modern style.