hi,
you can find different kind of heli tours around Paris from the main airports around:
- Le Bourget (North of Paris)
- Saint Cyr l'Ecole (20 minutes W of Paris, just next to the Versailles castle)
- Toussus le Noble (35 minutes drive South West, and no easy transportation)
- Lognes (near EuroDisney, but I'm not sure of what kind of helis they have)
For Issy les Moulineaux (Paris heliport), tour sightseeing are not allowed from this heliport to reduce noise complaints (but you will find package where they are flying you to another airport, have a cocktail for 30 minutes, then fly back again).
From Le Bourget you will have mainly Astar flight as a passenger.
From Saint Cyr l'Ecole, you will have mainly R22 and sometimes non based R44/AlouetteII/Astar
From Toussus le Noble, you will have based R22/R44/Alouette II/Astar but it's a little bit further away from Paris
As a pilot, you can even fly yourself with a flight instructor.
If you need more infos on these two last airports, send me a private mail, I can give you some email of companies or flight school that can propose you some things.
regards
Patrick