Others have hit the nail on the head, but you primarily want to park it someplace where it will make you more money. Its not hard you can do it yourself. Don't hire a financial advisor it's a waste of money and I'll tell you everything they will tell you here.
The easiest and most straightforward method is to put it a total market or S&P 500 index fund. Those will perform at about 12% over a long enough time frame. I assume 10% on my retirement accounts. Dollar cost average or not probably doesn't make a difference.
If you want a little more work, I have been told the absolute best investment tier 1 multifamily real estate. Tier 1 cities are New York, Boston, Philadelphia, Washington dc and San Francisco. I don't do this myself, although I intend to do so in the future.
If you are more adventurous you can pick your own stocks and come up with your own strategy. Most people aren't cut out for this (need elite level emotional control) and most people will have a low ROI based on time invested ( I do it myself and over the past couple of years I have beat the S&P by about 1% over the past 10 years since I started--probably not worth the 10+ hours a week I spend reading/listening about business strategy, businesses, etc). On the other hand I would spend those hours learning about business, strategy, investing anyways because I like learning so I consider it a hobby with a positive externalize.
If you're really into gambling, you can move into the crypto space. There are tremendous returns, but lots of risk involved. You better like learning and find good mentors if you want to go into this space.
Next you need to think about protecting your money from people who could try to grab it. The people who will try to grab it are the government, people who would sue you and yourself.
The best means to protect it from all 3 are retirement accounts. These are tax advantaged and typically protected from bankruptcy. You will want a Roth IRA (no taxes on capital gains, won't be taken in bankruptcy (or lawsuit) and you can't take it out until 55). Unfortunately you can only put 6k a year into your Roth IRA.
The next best thing is insurance. Insurance will protect you from e.g. car/home accident/weird bar fight and they have 1/2 million in medical bills. Umbrella insurance is the best (cheapest protection) you can buy. So you want to insure your car and home to the minimum required for to get umbrella insurance and then get 250k-500k of umbrella insurance.
You might be at the point where it is worth talking to an accountant about tax strategies, but I haven't been down that road so I cannot give you any advice.
The final way you can protect your money is crypto. If you buy cryptocurrency peer to peer and put it in a hardware wallet under your control you can avoid KYC so that nobody can prove that you own it. Obviously this is sketchy and I advise you to pay your taxes because you are 100% obligated to do so. This path requires a lot of learning and there is a lot of work figuring out your taxes which which you should do because I don't recommend setting yourself up for the potential of 5-10 years in jail for tax evasion.