You can test it, you have no loose for this.
How does it even work? Which ones do i need to pick to get the most? Is the payout automatic?
Check
liskpool.xyz/list/ for pool details. Then vote for active pool delegates for one month. You will see how much you will get. I got around 300 lsk last month for 20k weight. But I only vote for above 75%. You can earn more if you vote all.