I'm not 100% sure what you mean by typical. I'm assuming you mean story lines (drama concept) is typical. I know three big ones that are pretty popular in dramaland.
1.) Biscuit Teacher Star Candy- Noona-romance (Young guy, older girl relationships).
2.) Protect the Boss- Chaebol romance (Rich guy falls for poor girl).
3.) That Fool- Contract relationships.
There is also plenty of makjang storylines (outrageous: revenge, birth secrets, etc.), but I kept the list light. I saw that you really enjoyed a few dramas and tried to recommend some that were similar (typical), but had unique charms. And since you don't seem to mind older dramas, I added ones from a few years ago.
If you watch these, let me know if you like them. Enjoy!