As mentioned before, it is quite easy to obtain hotel status:

Accor PLT: given for free every once in a while
Hyatt PLT: Hyatt card
Priority Club PLT: Priority Club card
Hilton Gold (Silver): Citi HH reserve card (resp. Amex Hilton)
Marriott Silver: Marriott Rewards Premier card
SPG Gold: Amex PLT card
others smaller brands also possible

Note that these hotel cards are normally really good to keep given the AF/free nights ratio. The car rental "status" are quiet easy to obtain also (e.g., via Amex Plat card).

For airlines Aegean status are almost free to keep once you achieve them (which is not hard at all at 20k for *A Gold)

So it is quiet easy to have a 8...12 FF status