Maybe some simple statics will give some idea, so I suggest you to look by yourself, go
https://www.tradingview.com/markets/cryptocurrencies/quotes-all/ select "performance" tab. So now you can compare coins according to their 1 week performance, 1 month performance, 3 months performance, 6 months performance, YTD performance and 1 year performance. Only some coins have stable, secure and strong performance together with high profit at
each intervals.
Excluding 1 year performance, these can be named Bitcoin, Monero, Iota, Zcoin, Lisk, Neo, Groestlcoin, Ardor, Monacoin, Zencash and Dash. Ethereum, Litecoin and Zcash are also strong coins but were not much profitable as above for the last 6 months.