Any coin which offers some extra functionality over Bitcoin and which you have to earn/buy.
Ignore airdrops, everyone drops as many as possible and as fast as possible as soon as they got listed on exchange (few dummies will always buy) till the "buy orders" disappear and coin got delisted for zero trading.
Same applies for staking (but the inflation curve is bit slower as you treasure your coins as you need to buy the initial volume)
Any coin which offers some extra functionality over Bitcoin and which you have to earn/buy.
Ignore airdrops, everyone drops as many as possible and as fast as possible as soon as they got listed on exchange (few dummies will always buy) till the "buy orders" disappear and coin got delisted for zero trading.
Same applies for staking (but the inflation curve is bit slower as you treasure your coins as you need to buy the initial volume)