Since you already have several hotel program memberships, you could change the options in the ones you do not use enough to get hotel awards / status to give miles to the airline program of your choice instead.

One thing to consider is that if you have a program that just needs a few more points or miles to "top up" to a desired award or status threshhold, you may want to change the award options in your hotel program memberships to make that "top up".

Note that being a hotel program member with 0 hotel points can give you little perks when you check in, though not always. E.g. I got free breakfast coupons at a Hilton once. Also, being walked due to hotel overbooking may be a bit less likely for hotel program members than non-members.