Which is the best PTC site today which pays quickly too?

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I've not been able to devote time of late to clicking ads on sites due to a busy schedule. Recently when I tried opening bux . to, it did not open and I later came to know that their server got hacked. I also came to know that they don't pay quickly. I'm at present also using clixsense, clixncash and advercash but ads have become less and I don't see myself earning even pocket money from these sites. I also joined up on isabelmarco and crewbux but don't know how authentic they are? Can someone tell me which site is the best at present?