Metallic rattling

Hello guys. I have a rattling metallic noise coming from (most likely) the front end of the bike, or at least that's what my ears feel. I just replaced the bottom bracket and solved another noise related to that component, so that's unlikely to be the cause. Also the noise related to the BB was occuring while pedaling only, this noise occurs whenever I ride, getting worse with speed, and strangely doesn't occur while spinning the wheels on the bike stand. I thought it was the brake pads, even if they look like there's much more than the 1mm suggested minimum. I first tried calibrating them with the park tool videos and then even replaced with brand new ones, I think the noise got a bit better but didn't completely go away. There is absolutely no touching while spinning the front wheel while on the bike stand. One thing I noticed is that I can't manage to get a proper tension on the cable for the calipers to grip on the rotor only by tensioning the cable and fixing the pinching bolt, no matter how hard I pull the cable it always seems like the travel is too long and I later have to adjust from the rotating adjuster (don't know the name I'm so sorry). I'm not sure this can be related to the problem. Another thing I though about is that I remove the front wheel quite often because of storing/transport necessity so maybe I'm missing some kind of lubing about the front wheel? Thanks a lot in advance, I appreciated a lot the advice you guys gave me for the BB and that issue is definitely solved.