Pulled out my old cube

I recently pulled out my old cube I had stored in my garage for close to 20 years and it actually worked. I had replaced the video card years ago, I don't remember what it is but I do remember flashing it on a PC. It also has a 1ghz cpu I replaced. My question is, is there a modern OS that I can put on it to make it usable for web browsing. I put MorphOS on it but, I'm still looking for something else.