Legit those kinds of dramas are everywhere :)
I don't know if you just want CEO/ordinary girl stories, so I'll just recommend good romcoms which will defs include the type u asked for.
Taiwan:
- Just You (another aaron drama, really cute)
- Pleasantly surprised (about french cuisine)
- Love keeps going
- My lucky star (really old but so good, main girl is korean)
- prince turns into frog (really old, but a classic)
Korean:
- Bride of the century (really really really like this one, Cold CEO/poor girl, slightly supernatural)
- You who came from the stars (this one is super famous meaning you might have seen it)
- Descendants of the sun (the hottest drama of the year so far, super cheesy and awesome)
- Cunning single lady (CEO concept yes, but its also about failed marriage)
- Panda and Hedgehog (no ceo, just a cute couple, drama about sweets)
- Queen inhyun's man (time travel, cute couple)
- Falling for innocence (not as light hearted as the rest i recommended so far, so CEO/normal girl, it was really good)
Chinese:
-Boss and Me (typical CEO/poor girl story, super cute and nicely executed so u don't mind the cliches)
- My amazing boyfriend (currently airing, main guy is korean model, super cute, cliche but i loved it)