Is there any alt coin that's worth mining on small scale?
not looking for huge profit, just taking it for learning.
You can try looking for altcoins with low mining difficulty which means only few people are competing to mine it. so you dont need to have multiple mining hardware to be able to effectively mine that specific coin. i cant recommend any coin with that low mining difficulty because i have never tried cryptocurrency mining. maybe you can look for the least famous and a gpu or cpu mineable altcoin.