With a symmetrical shot like #2 I’d go with straightening the gateway, it’s more likely to be perpendicular. That leaves the handrail and the wall crooked, but perhaps that’s the way they are.
I like #3 and the HDR effect suits it somewhat, but I dont think it suits #,s 1 & 2.
I feel this look is overdone here and maybe a blend of the originsl shot and
some HDR would work better.
A slight rotation on #2 would improve the symmetry there too as already suggested.