Anyone can say and give a site that is trusted even me, so it is better if you will sight your explanation about the sites you are endorsing so that people will do believe in you with a basis.
I think you can find the kind of sites that provide you good opportunity to make money and maybe win at times and enjoy in the same time but there might not be a site that would be fully trusted and fair because in the market, you do not get to see fair and trusted sites.
Of course there is . there are gambling sites that are based on blockchain and they are decentralized . these kind of sites are more trusted than a non blockchain/centralized based gambling site but we are talking about gambling here and gambling will still be gambling no matter what platform/system it is based . luck will still matter in this in order for a person to win