If you don’t wan’t to go through Ethereum mainnet to get Hop tokens you can alternatively buy them directly from the AMM by going into the “Convert” section and choosing the “via AMM” option.
However, you might pay more (or less) for the Hop token this way depending on how the market prices the Hop token. 
The only way to receive Hop tokens at a guaranteed 1:1 ratio is by minting them “via Hop Bridge”.