I’d avoid placing the acara with goldfish (let alone goldfish with angel fish) as they require two different temperate environments and tank sizes completely.
I would definitely not advise putting acara in with goldfish at all. Getting two separate tanks if you can that would be a better option as they as stated above both need different size tanks and different temperature as well. In terms of placing goldfish with Angelfish I would avoid that too because both goldfish and angelfish come from completely different environments. I hope that helps.
I would also advise not to place angelfish with goldfish because they have drastic differences in water parameters. Whereas, angelfish will get along with acara.