I'd like you to know I go feral any time I see your art on my dash, no matter how old it is
And also I swear one of my two Durges, Everlest, would get along so well with Achaia. Although, depending on if it's pre or post tadpole, they might be fighting over a certain raccoon man. Yvaine would probably have to be talked into willingly talking to another Bhaalspawn.
I might doodle them together at some point! If you're okay with that.
Achaia loves all his siblings and he's never expected Gort to be monogamous. They could schedule it so Everlest can have him on the days Achaia takes the boys to visit with Yenna and Halsin (his other family). Or when he's with the Emperor. Gort shouldn't be left unattended anyway.
I would absolutely love to see them together. I have this idea to someday just do a like Bhaalspawn family portrait I think it'd be fun