1. Let's start option selling learning.
Strangle selling. ( I am doing mostly in weekly Bank Nifty)
When to sell? When VIX is below 15
Assume spot is at 27500
Sell 27100 PE & 27900 CE
say premium for both 50-50
If bank nifty will move in narrow range u will get profit from both.

2. If bank nifty will go down Put premium will go up. Say 80.
Now book profit from call sell position and sell call option equivalent to put premium rate.
At this stage if BN will move in narrow range you will get profit from both.
Keep doing adjustment as per move.

3. At one stage your strangle will become straddle with adjustment.
Straddle - same strike call and put
Exit point at straddle - exit when straddle combine premium is increased by 15-20 points.
Say 100-100 for call and put premium.

4. If BN moving in one direction at one stage straddle total premium will start increasing. Exit with max 15-20 points loss only. Don't wait.

Same way you can do with Nifty and bank nifty monthly expiry.

Only use 25-30% capital for this.

Pls keep in mind whenever VIX is below 15 and market is moving sideways do it.
It is dangerous to sell when VIX is high.