Texans Upcoming free agents
 

List provided by NFL Trade Rumors. Obviously, the one to watch cap-wise is Clowney:

Brandon Weeden QB
Joe Webb QB
Alfred Blue RB
Sammie Coates WR
Kendall Lamm OT
Seantrel Henderson OT
Angelo Blackson DE
Brandon Dunn DE
Christian Covington DE
Joel Heath DE (RFA)
Brennan Scarlett OLB (RFA)
Jadeveon Clowney OLB
Brian Peters ILB
Josh Keyes ILB
Kareem Jackson CB
Kayvon Webster CB
Shareece Wright CB
Tyrann Mathieu S
Ka'imi Fairbairn, PK (RFA)

According to Sporttrac, the Texans have an adjusted cap figure of $203,931,284 and commitments of $135,944,785 leaving projected available cap space as $67,986,499.

BTW, Demaryous Thomas has a $14,000,000 cap hit in 2019 but only a $4,500,000 salary and $0 cap hit for 2018. I suggest they cut him before the new NFL year to free up more cap space. He won't return investment while healing a torn achilles. Maybe they can work out an injury settlement.

Where's "My Guys", haven't heard from him lately ? I though he'd be over here running his yapper about how the Colts beat the Texans in the W-C game,
but he does offer some value to the Board with his personal scouting trips to Mobil, AL for the Senior bowl which is coming up this week.

You may be saying the same thing but if he is cut he has zero cap hit or penalty. This means he will 100% be cut.

I am but I'm not sure it is that easy when the player has a major injury.I think the league rules prohibit cutting an injured player without a settlement.