Having geographic knowledge of the various locations lends further context to why Munch would be so pissed at Roy after the kidnapping job went sideways. Dot was abducted from her home in Scandia, Minnesota, which is located northeast of St. Paul and sits adjacent to the Minnesota-Wisconsin state line. Her kidnappers were delivering her to her ex-husband, who is the sheriff of Stark County in southwest North Dakota. However, she manages to escape from them at a gas station in Beulah, located in Mercer County just to the northeast of Stark County. This means that Munch and Ireland drove over 500 miles and across two states to abduct Dot, only for the whole job to fall apart when they were less than 50 miles from crossing into Stark County.
In episode 1, Wayne asks Dot if she doesn't mind him watching Blue Bloods on his tablet as she's trying to get to sleep. Moments later, in Dot's nightmares of Roy, our first look at Roy shows him and his family seated around a dinner table, much like Frank Reagan's family at Sunday dinner in every episode of Blue Bloods. It's likely that the mention of a show about a family of cops triggered Dot because the Tillmans are, like the Reagans, a cop family (with Roy's father and grandfather being former sheriffs while his son is one of his deputies).
In episode 3, Dot and Wayne go to a gun shop to buy some guns for home defense. However, upon being told there's a mandatory one week waiting period to actually get the guns while they undergo background checks, Dot settles for purchasing pepper spray. Dot knows guns, so it seems odd that she wouldn't know she just can't buy them without a waiting period. Except, it's also revealed in this episode that Roy is a gun runner. Meaning that while Dot likely handled guns a lot while she was married to Roy, none of them were weapons that were legally purchased through brick and mortar stores.
Ole Munch is shown to both be a pagan and an ally of Native Americans, which are both steeped in matriarchal tradition. His personal style is also one that was fully masculine in his time (long hair, kilt, long fur coat), but looks more gender nonconforming in the modern day. It not only explains his deep respect for women (Dot and Irma), but also why he ultimately opposes Roy Tillman, the epitome of toxic masculinity.
Apart from the focal character being named Dorothy Lyon, there are a number of connections to The Wizard of Oz:
Dot's daughter is named Scotty. Dorothy Gale's dog Toto was a Cairn terrier, a Scottish breed. In the opening of episode one, Dot tells her "Now, if anyone stops us, you just bite 'em on the ankle", which was Toto's signature attack;
Wayne recovers from brain damage after an electric shock, correlating him with the Scarecrow looking for a brain;
Ole Munch at one point wields a hatchet, like the Tin Woodsman, and his story ends with him rediscovering his 'heart'. His "useless hand" parable also echoes the origin story of the Tin Woodsman, wherein a witch enchanted his hatchet to gradually chop off his body piece by piece and replace it with tin;
Indira starts off attacking Dot but eventually comes to her defence, and learns to stand up for herself and others, like the Cowardly Lion;
Roy, with his tall hat and goal to capture Dot, is surely the Wicked Witch of the West, which is further reinforced by his cowboy mannerisms and the fact that he's the sheriff of a county in southwest North Dakota. When he finally has Dot he tells her "I got you", mirroring the line "I got you, my pretty, and your little dog too!";
Gator and Roy's various employees can be likened to the flying monkeys; in abuse recovery circles, the term "flying monkey" is often used to describe people who are close to an abuser and quick to jump to their defence;
Lorraine's husband is named Wink, ala the Winkies, a people of Oz;
Roy's first wife Linda is one letter removed from Glinda, the Good Witch of the North (fitting since she comes from North Dakota), which is played with in the episode "Linda", where the character Lindo mentions that earning your place in the camp allows you to change one letter of the name;
Camp Utopia is an analogue for the Emerald City. Everyone there wears green, and campers taking on the name "Linda" is not unlike visitors and citizens of Oz being forced to wear green-tinted spectacles;
Lorraine is the Wizard of Oz - a fearsome and critical figure who intimidates Dot but is revealed to have built their empire on illusions and trickery, eventually offering to help her. Her gigantic painting of the word "NO" in her office, when turned on its' side, becomes the word OZ;
Danish's mustache and first-line-of-defence stance connects him to the sentries and gatekeepers of the Emerald City;
Both Dorothy Lyon and Dorothy Gale dreamed of escaping their farmyard life into a brighter world, and both spend their stories desperately trying to get home;
Ole consistently refers to Dot as "a tiger", and she mentions that she and Wayne once dressed up as "witch bears" for Halloween. "Lyons and Tigers and Bears, oh my!"
