I asked this sub for CC ideas last week and the top request was L-shaped sofas. Here they are! 2 new meshes and a recolour. Details and links in the comments. I
The Sims Resource - Tuomo Sectional Sofa
Best corner sofas for lounging in style | Your Home Style
Sims 4 Sofa Bed CC That Will Complement Your House — SNOOTYSIMS