Unscrambling the letters in COLLEGE makes 26 valid words. Here is the full breakdown — longest words, top Scrabble scores, and every word grouped by length (highest-scoring first).
Word lengths: 7-letter (1), 5-letter (1), 4-letter (7), 3-letter (13), 2-letter (4). There are 1 seven-letter words here — each is a potential Scrabble bingo worth a 50-point bonus.