Kikuyu/Rye Herbicide

Hey team,

My new house lawn was full of weeds. I sprayed it with Conquest about 6 months ago, which cleared them up and allowed the grass to fill in nicely.

Now the weeds are starting to come back, so I want to get on top of them. I have a mix of kikuyu and ryegrass, so I know I need to be careful about what herbicide I use.

What would be the most suitable herbicide for controlling broadleaf weeds without damaging the kikuyu or ryegrass? And what would be a good pre-emergent to use?

Thanks!