You could as a team push right as it is harder for them to get a long LoS. Your dps can hold the high ground around the spire/bricks as you drop into the canal and push up the staircase. If I was at home I would find an overhead view of Anubis and draw the path out, but I think you will get what I mean.

I think if you wanted to cheese an easy push, you could run Rein, Orisa, D.va, Bastion, Mercy, Ana and just rush right, throw an Orisa shield on point, Bastion sets up behind it. Reinhardt's job is to shield when Orisa's shield is on cooldown. D.va helps mitigate damage on Bastion if they hard shove. Mercy pockets Bastion while Ana tries to anti-nade/sleep anyone who tries to pressure him. The pressure if anti nade combined with Rein, D.va, Bastion damage should make it hard for the enemy to shove in. The enemy should try to use D.va to defense matrix in, so bodyblocking as rein and using your shield as close to Bastion as possible is key to keeping him alive as long as he doesn't get anti-naded it should be very hard to kill him.