good question. Actually, I have a webpage bookmarked that should answer it for many countries: https://howmanyleft.info/ the page looks at the vaccinations in the last 2 weeks and extrapolates how long it would take to vaccinate 100 times per 100 adults (the website came before it became clear how tough the delta variant is, thus it's not as useful anymore but for your question it still is.)

Definitely the US, UK, and the whole EU have more vaccinations than people who want to get a vaccine.

this page might be helpful, too: https://ourworldindata.org/covid-vaccinations