We're almost halfway through the year and Btc might go beyond 30k or 40k maximum as well as some top alts in the market.
Speaking of picking the right alts IMO, those are the alts in the top 20, however it won't bring you 100x profit though. The type of altcoin that gives you that much may not really feel like it's the right alts for you coz it bears too much risk of losing your money. You'd be lucky if it happens that you have invested into this kind of alt.
Top 20 coins won't even guarantee anything. even if you scaled it down to the top 10 coins it still doesn't have the potential to go up 100x. Only altcoins that are hype or types of altcoins that will only be abandoned eventually. Buying altcoins with the hype upfront is very risky if you don't make early profits, it will end up being a losing spot for many who enter towards the end of the journey. There is only some luck or going to get a loss will not even be worth it at all.