I make use of ripple for lower transactions, about ripple, the fee is very low and also that the transaction is almost instant, it takes just five minutes or slightly more time for transaction to complete. It is the best in my opinion. Also I do make use another best which is digibyte, the transaction also is almost instant with a very low transaction fee.
This chain could be the best chain to be used as an alternative chain too. These days ethereum is always facing a very difficult situation due to the gas fees.
I thought ethereum 2.0 was related to also solve the ethereum platform scalability issue, but it seem this has not be well implemented. Because, like you meant like the transaction fee on ethereum platform is still high.