dont forget about verus coin. a cpu coin
Thanks for the tip. I haven't heard much about that coin, but I'm going to give it a try. I hope it remains a CPU-only coin in other to bring fairness and equality to the system. I have some old PCs I'm willing to use as experimental machines for CPU-mining, so this coin would be the perfect "test subject".

You have absolutely no idea what you're talking about. Top RTX 3090 can do only 2 kh/s on Monero while Ryzen 5 3600 can do 7.5 kh/s.
Well, Ryzen CPUs have an integrated graphics controller (APU if I'm not mistaken). The same can be said about modern Intel CPUs these days. But go a few years back, and you'll find yourself with old CPUs without such capabilities. The results you've given to me are quite impressive, though.
Now the real question is whenever XMR is the most profitable coin to mine with CPUs or should I look elsewhere?

Monero isn't the most profitable coin to mine with your CPU try using calculator for raptoreum to compare daily earnings with Monero you will see what I'm talking about, raptoreum beats xmr mining.