I'm looking for a Hisense Roku remote
Roku doesn't sell Roku TV IR remotes, you would have to get that from the TV Manufacturer. The $14.99 IR remote sold by Roku is useless on every Roku tv. But the two Voice remotes $19.99 & $29.99 can be paired to ANY Roku tv brand.
Roku doesn't sell them, but you can find plenty on Amazon or ebay.