Another program that would have survived in a continued Cold War is the FRAM of the Hamilton/Hero class cutters.
https://taskandpurpose.com/news/coas...erburners/?amp
Harpoons, modernized torpedo tubes, modernized sensor suites and munitions storage would have transformed them into light frigates for escort duty.
The Famous Class would have likewise seen towed array sonar and munitions storage for navy ASW helicopters.
Not a game changer, but definitely another capability to add naval escorts in economy of force theaters. Anecdotally, a friend of mine once attended a naval gunfire familiarization fired by a Hamilton class cutter.