Canons or Rounds

58 – Prepare the Way
73 – Dona Nobis Pacem
83 – Gloria, Gloria
126 – Come, One and All
134 – Throughout These Lenten Days and Nights
147 – Hail and Hosanna
228 – Send Us Your Spirit
288 – Shalom/Bring Peace
384 – O Lord, Come Quickly, Hear Me Pray
394 – All Praise To You, My God, This Night
412 – You Are my Hiding Place
514 – I Was Glad
713 – What Does the Lord Require of You
785 – You Have Put On Christ
849 – We Have Put On Christ
873 – Praise and Thanksgiving
878 – God We Honor you
950 – Go Now In Peace
951 – No Go In Peace

Others:
491 – Hallelujah, Salvation and Glory (meant to be sung layered, but could be sung in canon)
822 – Lamb of God (could be sung as a canon).

Others, including some traditional hymns, can be sung in canon but are not marked as such.