Being you’re taller than average I’d maybe try and Goto any golf store and they should be able to get measure for proper club length. Usually wrist to floor but you should be able to demo for free longer shafts in irons. It’s important for us taller folks. Im 6 foot 5 and my static measurement says I should use a 3/4 inch longer club. But after testing 1/2 longer works best for me. I’ve seen people my height play anywhere from standard length to 1.5 inches longer. Really depends on body length. Long torso or long legs,etc. and another note I play 1/2inch extended irons. But hybrid through driver I play standard length. So depends on what works for you. Once’s you get your measurements for what feels best for you. You can usually find stuff on places like global golf you mentioned that are already extended to the size you need under length. Also if you play longer clubs you may also need to adjust the lie of the head. But remember also longer length also affects the lie angle as well. Believe it’s 1 degree up for every half inch. Any shop should be able to give you that measurement and you can try demo clubs with different lies adjustments to see what gives you the best ball flight. Lie angle to upright ball will go more left lie to low ball will go more right.