You can also go to more detailed analyses on their own (such as testing per country: https://ourworldindata.org/covid-testing) and choose the places you're interested in.
But it's important to note that the country-specific data is uneven as some things are reported more frequently than others by different countries.
Had a quick look but couldn't see whether the Our World in Data stuff has been shared. So here it is.
Overview: https://ourworldindata.org/coronavirus
You can also go to more detailed analyses on their own (such as testing per country: https://ourworldindata.org/covid-testing) and choose the places you're interested in.
But it's important to note that the country-specific data is uneven as some things are reported more frequently than others by different countries.