Masking sound to buffer vibrational noise in apartment

Hello! I just purchased the Soundcore a20s to help with sound proofing beyond my white noise fan if they work better than silicone or foam ear plugs. I don’t have experience with sound mixing, so any suggestions for a custom sound that could better buffer against neighbors slamming doors/closets, talking loudly/snoring, or the booming of the morning trash pickup? I tried only red noise without tuning to counter the high frequency(?) of my Honeywell fan, but I don’t know if it helped much at a volume of 60%! Thank you!