I'll second thinking about Sentinels. But if you want to do tanker, I'd say Willpower, Super Reflexes, or Shield paired with Radiation Melee or Spines.
Shield and SR have a click power, but it's the mez protection, so you'll want to set it on auto anyway, Willpower only has the T9 as a click and it's not *strictly* necessary, especially if you're soloing and not trying to push your limits with difficulty (which is sounds like you aren't). Radiation and Spines both have a toggle damage aura to help with one less click attack.
Stone Armor without taking Granite would be another possibility. It has a click heal, but it's really a +max HP power, so you may want to set it to auto. It has the advantage over the other 3 sets in that its taunt aura is a damage aura, so you'll have 2 damage auras to help kill mobs if you need to slow down your attack chain.