SPEAR has 13 anagrams including itself
some other good ones are:
RATES (13)
LEAST (12)
SLIDE (10)
REDOS (10)
LAPSE (10)
7 five-letter combos with 9 anagrams
9 five-letter combos with 8 anagrams
34 five-letter combos with 7 anagrams
good luck policing that
some other good ones are:
RATES (13)
LEAST (12)
SLIDE (10)
REDOS (10)
LAPSE (10)
7 five-letter combos with 9 anagrams
9 five-letter combos with 8 anagrams
34 five-letter combos with 7 anagrams
good luck policing that

J O T T O Tournament