Please find some good restaurants I've tested the last weeks in Paris:
Truffe Folies
All the items will contain truffles if you like them. They have menus with both black an white truffles. The restaurant proposes also some delicatessens you can buy. They have 2 restaurants in Paris.
Web Site: https://truffesfolies.fr/fr/
La Coupole
This is a historical restaurant where well known people went to eat including Josephine Baker. Very old place (1927). The food selection is great. The decoration is art-deco inspired. I tool the Os à moelle and the Foie de Veau Persillade.
Web Site: https://www.lacoupole-paris.com/
Little Red Door
One of the top bars worldwide. I waited like 30 minutes before getting in, but the experience was great. Very small bar with exclusive cocktails (starting from 14€). They have a menu with some stories behind the ingredients of the cocktails. I am a fan.
Web Site: https://www.lrdparis.com