I'd definitely advise against mutual funds. They generally cost more than it's worth, so you get a 6% return but cost 2% per year. Not worth it when you can just choose a couple good indexes like SPY or low cost ETF's and just throw your money in it. But yeah it's definitely time to get out of the savings accout and start investing yourself. If you want to go deep into education I like the book InvestED to get started and their podcast of the same name. I'm a big proponent of value investing and it's honestly not that difficult to learn. But even if you don't want to take that much control, indexing and dollar cost averaging over a 25 year time frame is much better than just throwing everything into a savings account.
What do you folks think of books like Invested https://www.amazon.com/Invested-Warren-Buffett-Charlie-Emotions-ebook/dp/B071CT7S7M ? I listed to a couple of podcast and felt like I was wasting my time, they take 30+ minutes to discuss a topic that gets covered in 3mn.