According to Aaron Wilson of the Houston Chronicle, the Texans have signed nine players to reserve/future deals:
Texans signed the following players to reserve-future deals: Erik Austell, Dee Virgin, Kennan Gilchrist, Bryce Jones, Troymaine Pope, Jevoni Robinson, Jake Rodgers, Dee Virgin, Zach Conque and Marcus Hardison
— Aaron Wilson (@AaronWilson_NFL) January 1, 2018
The list includes those who finished the year on the practice squad:
DB Dee Virgin, who made the original 53-man roster out of training camp in September
Of the people the Texans signed, Troymaine Pope is the only player to have played in an NFL game.