There is no instant and easy solution for this one, many things already try but all will answered by eth developer itself. We can mention about doing transaction in low fees hour, use stable coin, change network or wait until 2.0 release which one better is up to you. I choose to wait and playing asset in btc, swap into eth for saving, this move will do because eth developer still try with 2.0. Eth still have chance to grow up so saving with btc is my final answer.