Tokens are increasingly declining, who knows what they will be like in the future.
What is clear for now to avoid investing in tokens.
Not all tokens are like that because there are some potential coins / tokens. If you invest directly, choose a coin that has proven to be good and long-term. There is one token that in my opinion is still new, based on erc20 but has become the best token, you can make an investment reference, for example
Basic Attention Token (BAT). Why do I recommend BAT because
this token / coin is related to advertising, based on ETH and can connect publishers and advertisers such as on social media, Yahoo or Google. In my opinion, the BAT rating is not inferior to XRP or XLM, whose position is below ETH and BTC.