Free real-time odds sites help you line shop across books. Compare the same...

https://tiny-wiki.win/index.php/Moneyline_Odds_Different_Across_Books:_Why_Does_It_Happen%3F

Free real-time odds sites help you line shop across books. Compare the same market, period, and spread or total. Before you place a bet, verify the price, pick, and stake on your bet slip, since lines move and defaults can differ from one book to another.