There’s a Ruthenian/Ukrainian carol to St. Nicolas (Incipit: O kto, kto, Nikolaje liubit). You can try them.
Here are the words in English as generally sung:
O who loves Nicholas the holy?
O who serves Nicholas the holy?
Him will Nicholas receive
And give help in time of need:
Holy father Nicholas.
He who lives in God’s holy mansion
Is our help in earth, sky, and ocean.
He will guard us from all ills,
Keep us pure and free from sin.
Holy father, Nicholas.
Holy saint, listen to our prayer.
Let not life drive us to despair.
Help us heaven to attain
There to praise God’s holy name
Evermore and evermore.