delegates needed to win nomination 1236
winner take all states: pledged delegates
south carolina 50
Florida 99
illinois 69
missouri 49
ohio 66
arizona 58
wisconsin 42
delaware 16
maryland 38
pennsylvania 71
indiana 54
nebraska 36
california 169
montana 27
new jersey 51
south dakota 26
Proportional states with 20% threshold
Georgia 76
Texas 152
Vermont 13
Tennessee 55
Louisiana 43
Puerto Rico 23
Idaho 32
New York 92
Washington 41
Total delegates Trump guaranteed 1448
Total needed to win 1236
I am not sure how a brokered convention happens.
How recent is the data that your list is drawn from? What I recall reading (which may not be accurate) was that 25 of the states were now winner take all—SC and all of the later ones.