Here are the most stable and feature-rich builds currently available for the Exynos 7870 chipset (which powers the J730F).
Wipe → Advanced → Dalvik, System, Data, Cache, Internal Storage j730f custom rom
adb sideload MindTheGapps-13.0.0-arm64-20250410.zip Here are the most stable and feature-rich builds
Even the best ROMs have bugs. Here is how to fix frequent problems. j730f custom rom