Yes alternatives are there but we should consider the possibility of earning enough with our browser. I mean I can't believe that why browser mining has got so much popular suddenly since last week.

The most hype got from the freebitco.in recently popping up the news on screen. You just have to push that start button after making the settings for core selection and there you can start minding right away.

I even tried doing that from the smartphone browser which gave me 5 H/s of hash rate. That's just crazy. But devices are heating up very fast so I don't think that it is worth doing it as we may crash the systems in first place. You can try freebitco anyway.