The Double

Go Princess Go was an earlier work of one of The Double's directors. It has the same artistic theatrical style of The Double.
Even though The Double is altogether a better drama, you might try Go Princess Go to see the same level of drama and shock factor.

both FLs are wronged and killed get their faces swapped with another woman and become part of that woman's family
Both are historical drama
Both ML is a military man
Both FLs are betrayed and seek revenge on those who who wronged her

-Strong FLs in terms of mentality (FL in TLB can also fight)
-strong focus on scheming
-some focus on revenge for TLB, while The Double is pretty much all revenge
-hidden coup

There are many identifiable similarities, but I feel like the overall vibe of both dramas are quite similar. If you're especially looking for strong FLs who can scheme, both dramas are great.

Both drama is about a women who killed by a husband that she love and trust so much , she is back with different identity to Revenge for her husband who killed her cruelly

- Both FL have been married before
- Both FL are smart and intelligent, and overcome the (many) difficulties that come their way.
- Both ML are powerful and help the FL

*The Double is a little more focused on revenge, while Flourished Peony is more focused on personal and professional growth, but the dynamics between the leads are similar.

- both the eldest princess is the villain
- both ml saves fl
- fl devotes herself to ml
- both fl is courageous and smart and brave
- both ml is heroic
- both fl went through family tragedy

both have stong and smart female leads
both have a on going revenge plot
both fls take on the identities of dead previously close with friends or relatives
both have CPs that use each other for mutual gain

A revenge drama with complicated and intriguing relationship between our leads. Just like how the leads in 'The Double' trusted each other amd worked together to bring down all the corrupted people wish the same for this one.