My favorite classic Macs are the ones with color screens and CD-ROM drives. The multimedia possibilities really start to open up! I have a Performa 575[1] that was just about perfect for this, but it suffered a fall in storage that shattered the case. If it ends up being a total loss I'm going to start looking for a Power Mac 5200[2] which is better looking and can run early PowerPC applications.
[1] https://en.wikipedia.org/wiki/Macintosh_LC_500_series [2] https://en.wikipedia.org/wiki/Power_Macintosh_5200_LC
I also really enjoy the LC line, especially the pizza box form factor. They have similar styling to the Classic but have a color monitor, and still don't take up much space. There was also an Apple][-on-a-card that could plug into an LC's expansion port and allow it to run Apple ][ software... I haven't tracked one of those down yet, but I see them come up occasionally.