After ETH 2.0 changes from proof of work to proof of stake, which coins will be mined the most likely to be mined instead since ETH will not be mined anymore?
nobody knows. ETH 2.0 could still be years away and by then nobody knows what people will be mining. could be rvn, could be ergo, could be flux, could be some other coin you've never heard of, could be some coin that hasn't even launched yet