I have two Entities that have many To many relationship, Book and Tags asp Created automatically a table for the two entities, Using the code first approach

1. I am trying to add a collection of tags in the book creation, but the tag items are null also there is (select asp-for="Tags" ) but it shows me null in [httppost]create.

2. I tried to add it in through context as it catches the values of tags I add, but there is an error

   cannot convert ......dbset<> to Models.tags

Code:

public class Book
{
    public int BookID { get; set; }
    [Required]
    public string Name { get; set; } = null!;

    //Navigation property
    public virtual ICollection<Tags>? Tags { get; set; }   
}

public class Tags
{
    public int TagsID { get; set; } 
    public string TagName { get; set; } = null!;

    //Navigation property
    public virtual ICollection<Book>? Book { get; set; }
}

//DB Context
public class BLabContext: DbContext
{
    public DbSet<Book> Book { get; set; }   
    public DbSet<Tags> Tags { get; set; } 
}

// Book Controller
public class BooksController : Controller
{
    private readonly BLabContext _context;

    public BooksController(BLabContext context)
    {
        _context = context;
    }

    // Tags objects
   
    // public ICollection<Tags> Tags { get; set; }
   
    // GET: Books
    public async Task<IActionResult> Index()
    {
        return View(await _context.Book.ToListAsync());
    }

    // GET: Books/Create

(on get ) public IActionResult Create() { ///