How do you take care of your big tanks?

As someone who is barely 5 foot, it’s very difficult to scrub off any algae on the glass on my 55 gallon tank without basically having to put half of my body into it. I have a long scraper/sponge but it doesn’t help much. Could there be a fish I could get to help out with it? (I do have goldfish in there currently but just 2 that are roughly 3-5 inches each) I was thinking about pleco but I’ve heard they can suck the slime on my goldies. Thank you for any advice in advance!