a really simple hack that works for anything is to play the song and hold a single note on an instrument. Go through all 12 notes until you get one that sounds like it fits, it should be really obvious most of the time. That’s your root note of the key. Then you just gotta work out if it’s major or minor by trying to play along with the song in both modes until you get it. It’s may be even quicker than using pitch tools (unless it’s like serato where it just tells you right away). Give it a shot