IV+LEAPS

When you're looking at LEAPS do you consider IV (simply but call or but put no selling or collecting premium)? Also, if you have a measured move you're expecting do you use OTM and look at your ranges and hunt around there for volume + open interest to see use a gauge? I trade futures ICT but thing in conjunction theres opportunities outside it - also hows Robinhoods margins for basic buy call/puts options?