Of course you should research a site on your own and use that site. Then you will have more fun using those sites and can gamble with confidence. And if you choose a site after listening to others, it will not bring you confidence. And if you don't gamble with confidence, you will lose big most of the time. But yes it is good to get some advice from others it will help you to do better research. It can give you a better experience in gambling
Many trusted sites advertise on bitcointalk and stake.com can be considered as one of the best gambling sites. However, it is difficult to say that any one site is the most trusted and the rest are not. Every good gambling site is trustworthy and it is a personal preference where the gambler would like to bet. Some gamblers may prefer to play casino games and sports betting on the same site and therefore they will prefer the site offering the two.
Anyways, everyone can share their experiences on which gambling sites they gamble and let people decide for themselves, which sites they want to test and play. Another important thing among the trusted sites is that some may like one interface provided by the gambling site while others may like some other interface by another site. Same goes for features such as different odds offered by different sites.