In terms of practically indisputable entries, a few come to mind
The Undertaker, HBK and HHH - yes, we all know they'll go in someday so there isn't a lot to say here, it's obvious why.
The Rock - would probably be open to being inducted tbh, once they've inducted a couple other headliners I'd be surprised if he wasn't in there.
Randy Savage - another guy who definitely deserves it, although whatever him and Vince fell out over is obviously still continuing it would seem. But definitely deserves it.
Other guys who probably DO deserve it but are a bit more "controversial" - Ultimate Warrior, Kurt Angle, Kevin Nash, Scott Hall, Booker T (when they retire)
The Undertaker, HBK and HHH - yes, we all know they'll go in someday so there isn't a lot to say here, it's obvious why.
The Rock - would probably be open to being inducted tbh, once they've inducted a couple other headliners I'd be surprised if he wasn't in there.
Randy Savage - another guy who definitely deserves it, although whatever him and Vince fell out over is obviously still continuing it would seem. But definitely deserves it.
Other guys who probably DO deserve it but are a bit more "controversial" - Ultimate Warrior, Kurt Angle, Kevin Nash, Scott Hall, Booker T (when they retire)