Vowel team OE says /oo/ in “shoe” and “canoe”, which is uncommon. Centuries ago “shoe” was said as /shō/; similarly, “canoe” had several different pronunciations until the 18th century.

This vowel team says ō, as in “toe” or “oboe” and is most typically  at the end of syllables or words.

/ō/, /ō/, /ō/, toe