Many people move to live abroad because they are not satisfied with the level of development of their country. If you also decide to migrate, first decide on the city in which you would like to live. There is a lot to take into account, so do not rush to make decisions.
Before moving to a permanent place of residence, you need to live in the country for at least a couple of months. During this time, you can decide whether you like it there or not. But, unfortunately, most people do not have this opportunity, they are forced to make a decision remotely, i.e. without actually getting to know the country.
In the same city, different people feel differently, even if they have completely identical conditions. It is impossible to say for sure in which country it will be comfortable and pleasant for you to live and work. But you can pinpoint the places where you will not be sweet at all. If you want to start your own business, you shouldn't move to the cities of Western Europe. You just won't be allowed to develop there. All entrepreneurs of these countries are mostly hereditary, it will be problematic for a stranger even to register a legal entity.
But these countries are optimal for life for people who have substantial savings and do not want to exaggerate them. There is a calm climate, a friendly atmosphere, and a high standard of living. In America, on the other hand, it is easy to become an entrepreneur, even if you have little start-up capital. But the laws there are very harsh, it will be very difficult for a Russian person to adapt to them.
Choose countries that are close to your mentality. It will be difficult for an Orthodox person to live among a population professing a Muslim or Catholic religion. If you are planning to build a career, it is worth going to those countries whose language is familiar or close to you. For example, to Serbia, Ukraine, Moldova or Bulgaria. The adaptation period will pass very quickly there.
There are also several countries in which the most convenient conditions for visitors are provided. These are Australia, Canada, New Zealand. These countries are interested in emigrants. But getting into them is not so easy. You will have to learn the local language, declare some amounts, and take certain tests.
Hardly anyone would even want to consider the "black" continent as an option. Low standard of living, unusual climate, well-established traditions of the local population. All this will create quite serious difficulties with living.
The Czech Republic is a good option. After all, this country is quite comfortable, there is a high standard of living, favorable conditions for work (including for organizing your own business), not very high prices for housing and food.
In order not to be mistaken with the choice, you need to read reviews about different countries, communicate with the local population, think over places for possible work. After all, you have no right to make a mistake in your choice.