Best Investing Strategies?

What do you consider "good" returns?

What are you investing for?

If you're just starting out, I'd say invest in something steady, such as a market fund or ETF. At least $10k in that before you start buying individual assets. Inbetween getting that $10k invested, started reading books on investing, I'd recommend anything by Joel Greenblatt or Buffett's letters. If you're actually looking to invest, and willing to put in the work, I'd say after the $10k start accumulating individual stocks in businesses you know and understand. If you don't want to do the research or keep up with the stocks, just keep accumulating in funds. 

For crypto, not hating on it, but realize its more a speculation than an actual investment, as it could go to the moon or to zero tomorrow, you don't really know. 

As I said above, depends on what you're investing for. Just to invest, and put money into something, I'd be a little more speculative with it. If you're saving for retirement or kids college or a house. In a standard S&P fund you won't lose money over 10 years most likely, but you have "less" when you compare to a company in 5 years on a survivor basis. Meaning, if Rivian isn't around in 10 years but Telsa 30x compared to 10x in an S&P, you'd be thinking you should have bought Telsa. Remember, Rule #1 don't lose money.