By pure accident I got the vaccine I wanted, which was Moderna. If you are prone to allergic reactions or carry an epi pen, it is one of the safest.
I had one day of reaction after the first shot...aching and tired...really sore at the injection site, and then nothing. The second shot was less and more at the same time. I had planned to be ill the day after the injection, but really just felt vastly tired, and was very sore at the injection site. Unfortunately, that lasted for more than a week.