If I was getting one iZotope tool, I would start with Neutron 5 Neutron which includes a license foe Melodyne 5 Basics/Essentials

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does anyone know a contact email for ozone support?

Good luck with that. Now that they are owned by Native Instruments, getting to Support is a process and I don't know how to contact pre-sales. I know no way of contacting them directly, even the chatbot, without having an account. That said, there are some freebies so I would definitely create one and take advantage of it.

You can try the iZotope Facebook Page .

The best bargain I know to get Ozone 11 Standard is with Komplete Standard . If you have any NI products, upgrade pricing is pretty good. Other Komplete bundles include both Ozone and Nectar, a very good vocal processor with a tone of presets and the ability to tweak as needed.
Komplete Bundles comparison

Although you can use these VIs in Audacity, they can't be used in BIAB Windows since there's no VST2 support in Kontakt anymore.

FWIW, I've had Ozone since v. 1 and Ozone Advanced since v. 2. I don't use it often but, when I do, nothing else takes its place.

BIAB 2024 Audiophile Mac
24Core/60CoreGPU M2 MacStudioUltra/8TB/192GB Sequoia, M1 MBAir, 2012 MBP
Digital Performer11, LogicPro, Finale27/Dorico/Encore/SmartScorePro64/Notion6 /Overture5