For a monitor, you should keep an eye out for one of the pro grade monitors.
I'll have to take some photos of what Apple video looks like one of these days. Unlike most, if not all, other computers of this era, the Apple 8 bit computers used artifact color. On consumer grade gear, this ends up looking very distinctive, but it can be difficult to read text and or enjoy color graphics on the same screen. Many people got two screens, one monochrome, one color or a TV to get it all done in a useful way. These PVM devices can do both!
On a side note, the article I linked shows the good and bad of such a great display. Most things will be pixel perfect, even on a composite signal output. I like the look, because I like to see the pixels, but for some the lack of smudge sort of degrades the experience. But, the Apple 2 color also has a texture to it, because of the artifacting, that really adds to the overall experience. This texture is best seen on a display with high bandwidth.
These monitors have great circuits that can pick out the image from the messy composite signal. They also have computer grade CRT masks. The color dots are much smaller, which prevents fringing and blurry text. 80 column text is easy to read, and the monitor can be adjusted for bright color without too much fringing on text, best of both worlds when playing RPG games, for example.
Many models feature RGB inputs, which can work with a GS directly. Mine is flat out awesome. The GS on composite is dubious on most displays. These PVM displays actually make composite on a GS usable. But, the RGB is pixel perfect, not much different, if not better than the original monitor. In short, any 80 column capable computer from this time period will rock hard on one of these displays, and you get the niceness of a CRT, probably the best CRTs available, for a song these days.
I've used mine with a few different systems, Apple, Atari CoCo 3, and it's nice.
If you watch, these can be scored for a couple hundred bucks. Worth it.