Depends on what kind of SQ you want.

If for bass, Creative EP-630 is usually preferred. It only costs around RM50 here. Or if you're really stingy, Sony MDR-E818LP is insane value for just RM25.

Between RM50-RM100, I think the best choices are Koss KSC-75 and Soundmagic PL-30. I personally haven't tried the KOSS cos I'm not a fan of clip-ons, but there are so many rave reviews about it. I'm currently using the PL-30 and for slightly less than RM100 I'd say it's great value. Excellent SQ and includes loads of accessories.

I mean, at RM25 it gives you some very nice sounds if you have very limited budget. If you have enough for an EP-630 go for it......

PL-30 has a very nice soundstage, I like it for orchestra/classical musics. But yeah, the design is really awkward and may not be for everyone.