have you ever tried trading cryptocurrencies with binary options?
it's pure gambling with terrible odds, crypto or not. i would stay away from them if i were you.
i haven't seen any binary options sites advertised since secondstrade and updown.bt fell from grace anyway. simplefx is still around doing crypto-backed CFDs, otherwise bitmex for leveraged futures.
i'd rather see newbies jump right into margin trading rather than binary options. at least they'll learn something.