Hey,
i have following cards:
3x RX 470 4GB
1x RX 590 8GB
1x GTX 1080ti
1x RTX 4070 Super
What is the best coin to mine with these?
Depends on your power costs, but there should be a few things that the 4070 super is semi profitable on at regular power rates, if you do pay for power, or even if its free its probably worth selling the older stuff and buying another modern 40/50 series gpu instead
You can see what others are mining here: Hive OS Statistics
And places like whattomine.com and hashrate.no are good resources too.