The term 'bagel type' refers to the different varieties of bagels that are available. The crossword solutions for this term are PLAIN (5 letters), SESAME (6 letters), and ONION (5 letters). PLAIN bagels are the most basic type of bagel, made with just flour, water, yeast, and salt. SESAME bagels are similar to PLAIN bagels, but they have SESAME seeds added to the dough before baking. ONION bagels are also similar to PLAIN bagels, but they have ONION flakes added to the dough before baking.