Personally I just take a look on what most high ranking hunters are promoting, research on them and eventually join the one that comes top on my choices. I do not have to go through the rigors of ICO and IEO sites. I also detest bounties that ask for KYC and those that do not specify when bounty will end especially those that will continue until ICO is sold out even if it takes a year. I do not need to join bounties that last for more than two months, maximum is three.