We may don't know when the best time to investing because the market can goes down anytime in crypto.
But as long we we see the coin price still lower than average price, we can consider it is a good time to invest.
I like to invest in coins whenever there is a lot of news about it. The price goes in any direction when that happens.
Sounds like a HYPE to me, not all projects that are all over the news are good, some are been paid to spread the news as far as possible to attract people like you, better to use your researching ability on the project first and make sure it can deliver, the success of projects are all on the project's team