Is there any possibilities to rank globally without adding hreglang tags or having a ccTLD domain?

Hi all,

one of my client wants to rank globally with .co.uk domain. Is there any possibilities to rank globally without adding hreglang tags or having a ccTLD domain.

Though i have seen a website Sparx It Solution ranking with a keyword "magento development company" in almost all google domains (co.uk, .com, .de, .ca). This website is not using any hreflang tag or ccTLD and still ranking well.

Is there any way we can get ranked globally without using hreflang or ccTLD`s ??

Thanks for your consideration. Any help here would be much appreciated.