Are there any good tips or ways to go about it? Just submitting your information to the contact form feels a bit like the rube's way of doing it.
The fact that the price often isn't listed makes me leery as well.
Exception would be squatters sitting on something that is trademarked and is clearly a violation of said trademark. Unleash the lawyers.
If you’re emailing them, word your message to make it clear you’re not a bot. Persistence over time is often necessary.
One domain we actually wrote letters. The company didn’t even know they owned the domain. (They got it through an acquisition)
If their number is insanely high, see if they’ll consider a trade. That’s worked several times because they overvalue both domains.
Use some type of escrow service. We normally split the fees.
Do you mean something like a new .ai, or buying an already registered / squatted domain?