public List<Slot> FuelSlots = new List<Slot>();
    public List<Slot> InputSlots = new List<Slot>();
    public List<Slot> OutputSlots = new List<Slot>();

public List<Slot> FuelSlots = new List<Slot>();
    public List<Slot> InputSlots = new List<Slot>();
    public List<Slot> OutputSlots = new List<Slot>();

Location location = GetNextLocationFromInput();
location.ResolveEvents()

Location location = GetNextLocationFromInput();
location.ResolveEvents()

static class Input {
    public static string? GetInput(string prompt) {
        Console.Write($"{prompt}: ");

        return Console.ReadLine()?
            .Trim()?
            .ToLower();
    }
}

static class TestWorld {
    public static void Shop() {
        Console.WriteLine("Welcome to the shop");
    }

    public static void Arena() {
        Console.WriteLine("Welcome to the arena");
    }
}

class Program {
    static void Main() {
        var userInput = Input.GetInput("shop or arena?")!;
        var place = userInput switch  {
            "shop" => TestWorld.Shop,
            "arena" => TestWorld.Arena,
            _ => throw new Exception(),  
        };
        place();
    }
}

static class Input {
    public static string? GetInput(string prompt) {
        Console.Write($"{prompt}: ");

        return Console.ReadLine()?
            .Trim()?
            .ToLower();
    }
}

static class TestWorld {
    public static void Shop() {
        Console.WriteLine("Welcome to the shop");
    }

    public static void Arena() {
        Console.WriteLine("Welcome to the arena");
    }
}

class Program {
    static void Main() {
        var userInput = Input.GetInput("shop or arena?")!;
        var place = userInput switch  {
            "shop" => TestWorld.Shop,
            "arena" => TestWorld.Arena,
            _ => throw new Exception(),  
        };
        place();
    }
}

No best type was found for the switch expression.

No best type was found for the switch expression.