Nice man! I just rolled a WP tanker myself, since I never had one. Dinged 50 last week and it’s been a blast. I paired it with Street Justice due to thematic reasons, but it has been great! Highly recommend.
Honestly, since WP is so “set and forget”, it would probably pair well with any of the secondaries that have a “combo” type of system, like Street Justice. Dual Blades and Staff Fighting could mix well. Staff in particular has forced redraw, so with a set like WP where you don’t have to click any defensive powers, it becomes a non-issue. Plus, since WP has such great end management built in, you could pretty much stay in Form of the Body the entire time.
So, since you’ve listed some sets you’ve already used, my vote would be either WP/StJ, WP/Staff or WP/DB =]
Since you aren’t too found of weapon sets, Savage Melee might be one to look at as well.