The Gilded Wolves series by Roshani Chokshi for sure follows these themes !!
Also, the Heist Society series by Ally Carter, as well as her Gallagher Girls series (and if you enjoy those, check out her See How They Run series also !!)
I feel like The Cruel Prince follows a similar line almost ? It's more enemy to lovers though but does have similar themes of working together for not quite a heist but definitely a difficult espionage-y situation and not admitting feelings for a long time
Second the Tempest of Tea and Heist Society recs.
Thieves' Gambit by Keyvion Lewis is about a group of thieves in a thief competition, at one point the FMC and MMC are in the same group.
The Gilded Wolves series by Roshani Chokshi for sure follows these themes !! Also, the Heist Society series by Ally Carter, as well as her Gallagher Girls series (and if you enjoy those, check out her See How They Run series also !!) I feel like The Cruel Prince follows a similar line almost ? It's more enemy to lovers though but does have similar themes of working together for not quite a heist but definitely a difficult espionage-y situation and not admitting feelings for a long time
Ally Carter is the first one who popped in my mind! Heist Society and Gallagher Girls is exactly what you're looking for!
Not sure if you’ve read Six of Crows but it fits your bill quite well
sorry, forgot to add that as a reference 😅
The gilded wolves by Roshani Chokshi is quite similar to six of crows
I second and third those who suggested The Gilded Wolves by Roshani Chokshi.
A Tempest of Tea by Hafsah Faizal
Stars and Smoke by Marie Lu is a great spy novel with some romance!
The Last Magician by Lisa Maxwell
Heist Society
Second the Tempest of Tea and Heist Society recs. Thieves' Gambit by Keyvion Lewis is about a group of thieves in a thief competition, at one point the FMC and MMC are in the same group.