fyra

Both dramas have:
- actors who starred in both dramas
- action & crime solving
- cases inspired by real life
- dark tone

I have yet to find anything similar to Signal until I started watching Taxi. Highly recommend.

Both dramas have:
- business savvy and intelligent FLs
- MLs who know how to fight
- feel like slices of life dramas, with some political intrigue & action

If you like one, you should check out the other.

Both dramas have:
- spirits
- mysteries
- sassy MLs
- historical settings

If you're into romance with a touch of the supernatural, you'll enjoy both.

Both dramas have:
- smart and strategic FLs
- charismatic and fearless MLs
- great chemistry
- romances sprinkled with some politics and revenge
- great storytelling

The plots themselves aren't the same, but the vibes and feeling of satisfaction from watching them both are pretty darn close.