You can use exch. Exch is accepting Bitcoin, Litecoin, Monero, Ethereum and ERC20 tokens. If you want to convert to minero with the cheapest fee, use the exchange.
This is exch website:
https://exch.cx/To calculate the fee, you can input the amount that you want to exchange to minero to to see the fee before you press on exchange to exchange the coin. If you can not not go with 1% fee, you can change it from flat fee to dynamic fee of about 0.5% fee.
0.5 to 1% of $7 is not high at all as fee.