Before you choose a sewing machine, you should read ratings and reviews on sites such as https://www.sewinginsider.com/. These tell you the advantages and disadvantages of each of the models which are available and then you can make an informed choice based on the features you would like to have.
Some of the features which seem to be small and insignificant yet play an important role are as per https://www.sewinginsider.com/ and other review sites are :
Write something about yourself. No need to be fancy, just an overview.