Married PUT -r Long CALL/ Straddle etc

HI
It is a old debate Married PUT or Long CALL but keeping that aside

- If I am doing a married PUT ( Long Futures Long PUT on future NOT Stock and Stock option)

Then I want the Future to go rapidly in one direction ( preferably mine) so that The profit on the LONG Futures will outperform the cost of PUT

So this in mind
- What Contracts are volatile enough and liquid enough ( Liquidity in it's option also)
- What indicator one should choose to see the volatility?
- On the option side PUT expiry shall one choose? weekly? 3 Weeks/ 1 Monthly?
- Which broker gives the best Cross margin ( should recognize the LONG futures position is hedged )

OR with the idea of doing a straddle ( LONG CALL + LONG PUT)
Same questions as above

All help appreciated

Thanks

Married PUT -r Long CALL/ Straddle etc