First step is you want to "Sell to Open" a Put. You can pick different Strike Prices and different timelines. The closer the strike price is to the current price, the more money you will receive. The further out the timeline, the more money you will receive. Some examples shown below.
https://imgur.com/a/o3H9FJ5
The picture I posted is for Jan 15 2021 expiration. This is for illustrative purposes. If you look at the $185 line, what this means is you could sell a put of TDOC for somewhere between $19 and $19.70. Let's say you successfully sell it for $19.50. Since each put is 100 shares, you receive $1,950 in premium.
If TDOC is above the $185 strike price on Jan 15, '21, you keep that $1950 and walk away with it. If TDOC is below $185 on Jan 15 '21, you would be assigned 100 shares at a basis of $165.50 ($185 strike price - the $19.50 premium you received). If TDOC is $184, this works out pretty well for you. If it's $100, not so much.
The catch: You want these to be cash-secured, so you need to hold $18,500 ($185 x 100 shares) in cash the whole time you have this position open. Still, 10.5% is a pretty good return on that $18.5k in 4 mos. OR ownership stake in a stock you already want to own.