De Bruyne said Germany's Bayern Munich and French side Paris St Germain were among the teams he turned down to move to City.
"I had the option of going to Munich, PSG or staying in Wolfsburg. But I thought for me the probability of the type of football that I can play at City will suit me the best," De Bruyne told BBC's Premier League show.
The move has paid off with De Bruyne, who leads the league's assist charts this campaign, on the verge of winning his third trophy at City in as many seasons.
Manager Pep Guardiola's side have lost just once this campaign and hold a 16-point lead over second-placed United and De Bruyne believes that clinching the league title against their bitter rivals would add to City's joy.
"It would help us if we win it against United. It's maybe better for the future," he added.
"Fans will mock each other, that is the way it goes. So for them it's the biggest thing."
City are also competing in the Champions League quarter-finals, where they lost 3-0 at Liverpool in the first leg on Wednesday.
(Reporting by Aditi Prakash in Bengaluru; editing by Amlan Chakraborty)
