Team Building Advice Thread?

None of the other constant threads seem to really be about just talking about what mons to use/comparing teams for general play.

Pic related is the one I'm working on
>Effect Spore Morelull for joke
>Araquanid for bro
>Mega Metagross for psuedo
>Salazzle for general wall coverage (also replacing my current Incineroar & Muk while keeping the type coverage)
>Galvanize A. Golem for type coverage (specifically birds/electric), maybe with stones too

Any suggestions for the last slot?
And any egg moves/nature options to consider with this group?

Post other teams and help more casual anons out.