If you're not going to build a website on the domain thus won't be bothered with seo and stuff, why .com? There's countless other tld thats cheaper than .com's

If you're not going to build a website on the domain thus won't be bothered with seo and stuff, why .com? There's countless other tld thats cheaper than .com's $8 yearly (which imho still cheap considering some tld do goes to $50-100 yearly). Check https://www.domcomp.com https://www.domcomp.com and see the new and renew tab then choose the overall cheapest there. For email hosting, again for the absolute cheap theres actually few free service that allow custom domain, zoho and yandex comes to my mind.