Valvoline ULV ATF has been bouncing in and out of the sub $50 range the last few weeks. Currently as of this writing, $43.99 for a 6 pack qts. Cheapest I have seen it. For those with GM and Ford 10 speed transmissions.
https://www.amazon.com/dp/B085QL5BJH
https://www.amazon.com/dp/B085QL5BJH