The Foxes still sit second on the Premier League table, equal on points with leaders Arsenal, but Ranieri is eager to strengthen his squad so as to give the likes of leading scorer Jamie Vardy some assistance.
"We have our eyes open," said Ranieri.
"If there is a good opportunity for us, we are ready. Now I want another attacking player - a striker.
"I am very confident. My staff is fabulous, every day they are working, because when I ask about something they are ready. I'd like to do my business as soon as possible."