For a specific model that is compatible with the Amiga, I would suggest the HP Deskjet 500 C.
These really are great, reliable printers. If you can find one second-hand, I'd buy it simply because they are cheap to run and really reliable, and compatible with Wordworth; another good Amiga based Word processor.
My friend has one running on his Windows 98 box, and I must say even though it is approaching it's 9th year of service there is still not a trace of any problems.
You might be skeptical about cartridge price though, since HP seem to have the reputation of good printers, dodgy drivers and expensive cartridges, but this printer has been on the market since the mid-90s IIRC and nowadays the cartridges are really cheap :-D
If you do opt for this printer though, I would recommend using it with Wordworth 4 or later. Many Amiga dealers are still selling Wordworth 7 to my knowledge, which was the last version developed for the Amiga several years ago. It is available as a set of disks or a CD-ROM.
