Personally I don't have any subscriptions at the moment. The school has Phonics Play and Twinkl, both of which I use regularly and would miss hugely if I didn't have. We cancelled Espresso as it was just soooo expensive and less that half the teachers in the school were using it. Which is a shame, as the videos were lovely.
When I get some money in the ICT budget I want to get Purple Mash subscriptions, at least for the KS1 children as I had it at my last school and really miss it. And when the current subscription to Maths Frame I'm using (login given to me by a student teacher last year) runs out, I'd like to buy a school subscription for that, if the money is in the Maths budget. I really, really like the visuals on Mathsframe but as it's mostly a KS2 resource, it pains me to buy it for my year 1 class. Having said that, the stuff that is relevant is really, really good. I'm hoping my ex-student renews her subscription...
I used to use a former colleague's TES iboard subscription but when it ran out I didn't miss it. Can't think of any others that I have/have had. I agree that Twinkl is expensive (used to use a subscription paid for by my old TA at my last school) but there's so much on there I think I'd probably pay for it if I ran out of people to borrow a log in from!