Accommodation help in Ratingen area.

I’m moving to Ratingen next month and currently looking for accommodation, which I also need to open a bank account. I’ll be moving with my girlfriend, so we’re looking for a studio or one-bedroom apartment. I tried the Ratingen subreddit, but it doesn’t seem very active.

I’d really appreciate any recommendations on websites to find accommodation, especially popular ones in Germany. Also, if anyone here lives in Ratingen and has suggestions on good, safe areas to consider, that would be great.

Thanks in advance!