From my perspective as a user, maybe someone who would visit your domain, I’m indifferent to the specific TLD used. You might be able to compose a clever word that grabs my attention, which I’ve seen a lot from .ly domains.

However, from an email marketing perspective, TLDs are not interchangeable. Some TLDs (think .xyz) see a lot of abuse, tanking the reputation and deliverability for good actors using them too.

So my advice is to stick with TLDs that most good actors are using (.com, .io), giving you better baseline deliverability, because email marketing remains incredibly valuable for growth.