Fish for specific tasks

Hi,

I am about to get my 90 Gallon tank up and running again. I want to draw up a list of fish that will perform a specific tasks in the tank.

One of the main jobs i want help with is a fish that will eat common Coral pest parasites. I have heard that some Wrasses can do a good job of this but i have a rimless tank and have wrasses jump out in the past so was wondering if their are any other options?

I am also thinking about adding a Foxface as i had one in the past and it did a great job of eating green algae off the rocks. I'll get a couple of cleaner Shrimp for cleaning the fish too.

Does anyone have any other fish that would be good for these tasks or other fish that can help with other tasks I havent heard about?

Thanks!