Resurrection Remix combines features from LineageOS, SlimROM, OmniROM, and others. You get a massive amount of UI tweaks (status bar mods, gestures, animations). If you want to turn your old Honor 3C into a theming showcase, this is the ROM. However, disable animations for smoother performance.
If you are looking to refresh or repair your device, you are limited to the following official or semi-official methods: huawei bg2-u01 custom rom