SHA256 (BTC), Scrypt (Worldcoin) or Scrypt-N (Vertcoin)
ok I'll stoop to this level ...
why don't you try myriadcoin, you can mine any or all of the five algos sha256 if you have asics, scrypt or skein if you have gpus, qubit or groestl for older model gpus and cpus each algo has it's own difficulty and is independent from the other algos.