a flat buckle collar is 'safest' cos its less likely to catch on something, then you can get the martingale which slips over her head
I'd do that, just to get her used to wearing the collar & being 'collared'
I say "collar" each time I put the collar on. As a pup this type of handling will be vital later.
Never leave the collars on when not supervised.
in the beginning you can 'lure' the pup to follow you, walk beside your left side after a treat in your hand.
do sev. brief sessions, sev. times a day. with lots of encouragement & praise.
the leash/collar is basically so that the pup won't run off & I'd avoid tugging/pulling the pup or she'll learn to dislike the collar.
when I put on collars, all mine try to get collared. as part of recall they know that they'll get collared and praised/treated. this could save yourdog's life.
there are plenty of trainers that do not use metal chain/choke collars at all. one good collar is a gentle leader. do research & ask about positive reinforcement training.
keep us posted, I'm excited for you getting your pup.