>>102846425The Hazardous Hydro-Man vol. 1 #1-37
Hydro-Man: Thicker Blood #1-4
Hydro-Man: Abyssal Depths
The Hazardous Hydro-Man vol. 2 #1-14, 16-44, 57-65
The Destructors #1-19
Hydro-Man #1-12
The Hazardous Hydro-Man vol. 5 #1-18
Thicker Blood and Abyssal Depths are both out of print but you should be able to find Thicker Blood pretty easily online. Abyssal Depths is going to be harder to find since unlike Thicker Blood it was never reprinted. Issue 15 from volume 2 is poorly done anti-drug PSA, and 45-56 was an editorial forced change to the title to synergize with Byrne's work on Spider-Man and completely reverted in issue 57. I don't think those issues have ever been collected. Skip HHM volume 3, it's a total revamp and doesn't actually feature Morris. As its own thing it is kinda okay and starts getting interesting at the end, but ultimately it is just boring. There is no HHM volume 4, Hydro-Man was retroactively listed as volume 4 when it was relaunched and renumbered as Hazardous Hydro-Man despite no actual break in publication. Drop HHM vol. 5 once the legacy numbering kicks in, though some will say to drop it after issue 15 when they switch artists. Also his appearances in Marvel Villain Teamup suck.
