Huawei Y7 Prime 2018 Custom Rom Better ((full)) -

Based on XDA forums and Telegram groups, here are the top contenders:

This is the biggest headache. Many custom ROMs for the Snapdragon 435 have broken VoLTE. If your carrier (like Jio in India or Verizon in the US) relies entirely on VoLTE, calls will drop to 2G/3G or fail. huawei y7 prime 2018 custom rom better