check "dextools.io" look for a newly released coin that looks nice, invest like 20 bucks in it might sound bad but some of them go up even 60000% in a day, I didnt do it myself but I know people that made big buck from it so dont take my word 100% for it, just hope it doesnt get rugpulled
or learn forex its great
another option if you feel lucky is to put money into a biotech stock before their catalyst release, then it will either drop to the pits of hell or go to the moon (usually they drop to hell 9/10 times because its hard to pass FDA level 4 or whatever it is called) but I guess if you short them on any leverage it will be big ?