Never read much with him in it other than Invaders where there wasn’t a lot of personality. Sort of tempted to check out Byrne’s solo series that has been collected in an Omni recently where I’m guessing he had more of his character developed.
The SAGA OF SUB-MARINER series I linked to all 12 issues above. So you don't even have to buy them.
I also linked to a Michelinie and Romita Jr/Layton IRON MAN 120-121 story that I thought was especially good.
And the 1998 HULK annual I linked above, with Doug Wheatley art, a story that also plays up to the more interesting aspects of the character.
And the 1972 DEFENDERS run by Englehart and Sal Buscema is another well-written run that includes Sub-Mariner.
