I also have some altcoins on the Erc-20 chain, and I find it hard to move them around without paying a lot of fees. However, I think there are some solutions that can help you reduce the fees and be prepared for a bull market. One solution is to use a Layer 2 scaling solution, such as Polygon or Optimism, which can offer faster and cheaper transactions on Ethereum.
then the question arise, is your erc-20 token also deployed in these blockchain? if the answer is no, then it's useless using these layer 2, also polygon i think is not layer 2, it's standalone blockchain.