Anything you can flip…. Carry around the Google app and look up prices as you go….i can’t see what’s at the places you go to…. They all have different things. And it depends what your skilled at.
If your good at repair go get cheap bikes and restore them.
Those old dvd players, TVs etc have metals in them. My neighbor got me into this…. Sterling ñ, gold, platinum, etc
Clothing - brand stuff
Anime figures
Anything you can get at a deal bro. You can sell almost anything if you get for the right price. Work on your bargaining skills