Free odds sites help you line shop as odds move. Compare the same market, not...

https://fair-wiki.win/index.php/Can_Odds_Boards_Show_Player_Props_Too%3F

Free odds sites help you line shop as odds move. Compare the same market, not just similar bets. Then check your bet slip: right side, odds, and stake. A quick look can catch a mismatch before you confirm. Make it a habit each game you bet.