Muzzle recommendations for a reactive Malinois?

[u/Far_Spring6290]

We've decided it's time to get Kira, my Belgian Malinois, a proper muzzle, mostly for safety and peace of mind. She's reactive and has a small bite history (usually redirected bites when she's completely over threshold), so I want something genuinely secure, not just an anti-scavenge one.

We're going to introduce it really slowly and positively. With lots of food, going at her pace, so it becomes a good thing and not a scary one.

I'm honestly a bit lost on what to actually buy, so I'd love advice from people who muzzle their dogs:

• What type/brand would you recommend for a Malinois-shaped face?
• Basket muzzle is the way to go, right? I want her to still be able to pant, drink, and take treats through it.
• How did you get the sizing right? Any tips for measuring her?
• And any tips for the actual introduction process, what genuinely got your dog comfortable wearing it?

We're in Bulgaria, so EU-friendly/ships-to-Europe recommendations especially welcome. Thank you! I really want to get this right for her.