I recently watched Guardian Chinese drama ( I love how the plot is made as well, it was origanally BL but the main leads shows the love silently with gestures, words and eyessss)
I also love Bromance (Taiwan drama) Veryyyy much ( I ship them in real life too lol) .
So, please please please, recommend dramas as the title described.
Strong does mean physically/mentally or fighter leads.
My recommendation is
1. Guardian ( Strong two main leads)
2. Bromance ( Matial artist male and female leads)
3. Stranger ( Smart male lead and strong female lead)
4. Children of Lesser God ( Smart male lead and strong female lead)
5. Voice ( Strong male lead and smart female lead )