There are 16 words that start with 'bestr'.
| bestrew | bestrid | bestrow | 
| bestrewn | bestrews | bestride | 
| bestrode | bestrown | bestrows | 
| bestrewed | bestrides | bestrowed | 
| bestrewing | bestridden | bestriding | 
| bestrowing | ||
Note: These 16 words that start with 'bestr' are found from the USA & Canada version of the tournament Scrabble word list.