Lost Seasider I’ve gone off the Worldometer…Hungry 3106 per mill. Bulgaria 2597. Looks like Matesrates has used the same info.
Our World in Data is the best site (it's what the media use), they have substantially the same numbers as Worldometer.
Different countries have different criteria for reporting a death as "Covid"; some countries (such as the UK and Hungary) draw the net very widely, others (Italy, Bulgaria) are much less likely to record a death as Covid, so the numbers are not comparable between the countries, this is why the UK is often (wrongly) said to have had the highest death rate/number of deaths in Europe.
The way to compare countries properly is to look at excess deaths.
In the UK we report either 128k or 152k deaths (depending upon measure), but statistically over the pandemic only 119k more people have died than we would expect to have died anyway over the period, which equates to about 180/100k excess deaths.
Hungary is in a similar position, up to 11th April they reported 23,000 Covid deaths but excess mortality was 22,000, a rate of 228/100k, which is bad, but nowhere near as bad as some places (Czech Republic 300/100k), and importantly they've accurately reported them.
In the case of Bulgaria, they've reported 16,000 covid deaths but their calculated excess deaths is 30,000, which gives a truely huge 433/100k, i.e. not far off double that of Hungary, to put it another way if they used the same method for determining a covid death as Hungary their 2,600/1m would be more like 5,200/1m.
Highest absolute death toll in Europe (excluding Russia) is almost certainly Italy, who had 116k excess deaths up to 31 January, and obviously many more since then.
A useful Economist article and source for much of the above:
https://www.economist.com/graphic-detail/coronavirus-excess-deaths-tracker