We will be staying in the 5th for 3 weeks. My husband likes whiskey and I love gin. Any suggestions on cocktail bars that we should try while in this area. No opposed to going outside the 5th for a interesting evening.

Download the 52 Martinis app. Everything you want to know about cocktails in Paris.

In the marais
https://www.timeout.fr/paris/bars/candelaria
have a 'guępe verte'
Santé !

Candalaria is on the list of Worlds Top 50 bars. Go to So-Pi (9eme), rue Frochot for the Bermuda Triangle of bars; LuLu White, Dirty Dick, Lipstick, Glass. For a more sophisticated experience in the 7th, Fitzgerald’s is nice. And of course some of the €€€€€ Grand Hotel bars, Hemingway at the Ritz and the Crillon.

Harry's New York Bar in Paris was the birthplace of several famous cocktails and thus is one of the ultimate cocktail bars in Paris.

Plus a bar with great history:

https://en.wikipedia.org/wiki/Harry%27s_New_York_Bar

• Harry's New York Bar is said to be the birthplace of classic cocktails such as the Bloody Mary, French 75, Side Car and Monkey gland.[5]