There's the United TravelBank, those funds expire 5 years from purchase. But other than SW's transferable flight credits, no, I don't know of any.
For my travel habits, the Aspire resort credits were almost useless since it could only used on the 307 properties that Hilton deems resorts and I don't have any decent ones (well, ones that have availability) nearby. I did force us to use it and the FNC at WA Monarch Beach in August after dropping kiddo off at college, and DH said he hated the place and would never go back (our 1 night was during the hurricane that hit SoCal so there's that extenuating circumstance lol...).
Actually I find the Surpass's $50 quarterly credit at any Hilton more appealing. I can definitely see spending a night at a Hilton property at least 3 out of the 4 quarters of the year, so that would cover the AF. And with Hilton Gold status from my Schwab Plat I wouldn't be giving up the F&B credit either. Seems to me that the Surpass would work better in our situation, but even so it doesn't really offer much over the no fee Hilton card that DH has. Except the current SUB! It might be worth it just for that.
Since I only value a HH at $.004 and have a hard time ever getting above that, Surpass's new 4x online purchases works out to 1.3 cpp so that's not a big deal to me. The BBP + Schwab cash out gets 2.2 cpp, and BoA's online shopping 3% cash back is even better (5.25% with Plat Honors), so that's my baseline comparison.
You probably know all this anyway, I'm just typing my thoughts down to work through them myself lol.