There are some niche builds that can turn 1H+Shield into a more aggressive playstyle, and I like experimenting with that myself. In that sense it kind of already fills the role you want (aggressive, still not as powerful as dual wield etc, but more protection as a trade-off for that). I also have my fingers crossed that scribing will help facilitate this playstyle even more, since a new skill with three morphs and so many morph permutations should provide the flexibility for a DPS focused skill here.
If you're interested, a set I love using for this in solo content is Turning Tide. Blocking an attack causes your next bash attack to unleash an AOE tidal wave damaging all enemies in front of you and afflicting them with major vulnerability for 10 seconds, causing them to take 10% more damage. Power bash counts as bash damage which will proc this set, and is already a high-damage skill. Riposte CP slottable causes your next direct damage attack used after blocking (which affects power bash) to deal 33% more damage. It's a really satisfying combination to use, major burst damage, and you can either pair that with bash sets to double down on that style of play so your Turning Tide burst feels nuclear, or with DPS sets to capitalize on the major vulnerability debuff that follows.