What are the Best ways to invest $10,000?

I would put 5K into saving as emergency fund, then put the other 5K in a low cost s&p index fund for the long haul. You can do it in IRA account, then you dont mess with taxes or anything and can add to it in future years.  You can buy stocks later after that when you have more.

Without knowing more of your personal information, and current financial status and other data such as risk tolerance, martial status, demographics current income & expenses it would be very inappropriate for me or any other responsible person, especially a professional from the investment industry, to provide specific investment information in this type of media.  At the same time, it would not be prudent of you to accept any specific investment advice from those you personally know nothing about other than a responder here at Yahoo Answers. 

Those responders here on YA. that do provide specific investing ideas based on the Information you have provided demonstrate a lack any real investment experience and have also proven that they do not understand the proper communications with new investors suggested by regulatory authorities and for those that claim they have professional titles and/or licenses one would question their integrity and professionalism 

However, there are websites that serve as tutorials for novice investors as well as information for the more experienced. Such sites are Smart Money - http://www.smartmoney.com/  Kilinger   Kiplinger.com, Forbes - Forbes/com. Morningstar - http://www.morningstar.com/  

There are other sites that will be of help, Investors Place and Zack's Research that provide access to various investment products as well as access to several experienced advisors, all provide a wealth of information regarding the market and the various products trade in the markets. The research and commentaries by the various writers provide a wealth of free information that serves all types of investors whether they are novices, or experienced professionals. 

Get Dummies Guide to Investing, and the Dummies Guide to Personal Finance.  Set investment goals, and make a plan matching investments to met those goals.  Enact the plan.  Chart the plan on a spreadsheet and update at least monthly. 

Here are 5 smart ways to invest $10,000:

Invest in Mutual Funds or Stocks.

Open a High-Yield Savings or Money Market Account.

Try Out Peer-to-Peer Lending through Lending Club or Prosper.

Start your dream business.

Open a Roth IRA.

FNILX reinvest any & all dividends, add $6000 a year and do not touch for 30-35 years.

Bought APPLE and AMAZON stock late 2016 & early 2017.  Currently APPL is + 162.47% - AMZN is +109.60%.  These 2 have been gems along with FACEBOOK- GOOGLE.    However all good things come to an end and I’m watching a them closely.  Good luck regardless of how you invest 

Are you planning to use the money soon, or it for later?

If it's in the bank, leave it there for a couple more weeks. If President Trump gets impeached and removed, the sock market is gonna crash like a huge boulder. Keep on checking things out, but hold off a bit.