I would do a lot of due diligence and research before investing in any high-risk investment class digital assets, which is what cryptos are. You can start by checking out the different niches of each group of coins and tokens.
For example here are some to look at:

1. INFRASTRUCTURE COINS such as ETH, BTC, VEN, WAN, STRATIS, NEROCHAIN, PCHAIN, STELLAR etc. These are actual blockchains where other dapps and applications, smart contracts etc are built upon. These I listed are just some examples, there are tons more to look at.

2. PRIVACY COINS like Monero, ONION etc which have layers of more privacy in their transactions.

3. EXCHANGE TOKENS like BINANCE, HUOBI, COBINHOOD, COSS, TRADE.IO, IDEX these exchanges have their own tokens, SOME ARE CENTRALIZED EXCHANGES, SOME ARE DECENTRALIZED ETC

4. infrastructure for mass adoption TOKENS/COINS SUCH AS TENEX, MONACO, PUNDI X which want to help buying/selling stuff with crypto much easier for the General public.

These are just some of the niches you can look into and find the best that suits you in each niche.

YOU CAN CHECK OUT ALSO ico sites like ICOBENCH, ICO DROPS, COINSCHEDULE etc to find out about new ICOS as well.