Radioactive dragon eyes, Rastas, nuclear greens, bam bams, Captain America’s, sunny Ds, etc. there’s so many beginner ones that can be had at decent prices nowadays. Also some of those I listed are palys so idk if you’re just interested in zoas or palys too.
I currently have nirvanas, Medusa’s, frozen apple, Captain America’s, daisy dukes and oxides and don’t think I paid more than $20 for any one of them. Most were $10-20 for a couple polyps.
20 Gallon SPS reef
29 Gallon FW "fat catfish" tank
20 Gallon Long Dart Frogs "Zig" and "Zag"