Another great place for TA chain rings is https://www.veloduo.co.uk/collection...gs-inner-outer, not to mention TA itself, though TA is more expensive. Note that you'll need both outer and inner rings (middle, too, if you go triple) if you switch to TA rings.

I post this info a lot, because Velo-Duo Cycles helped me a lot by responding a lot more quickly than I expected a few years ago when I needed a new 42-tooth inner TA ring. I'm still grateful, so I still want to mention them.