Operator Connect for single user (UK/IE phone number)

Does anyone have a recommendation for a Teams "Operator Connect" provider which will do a single number for a single user? Ideally, either a British or Irish phone number (and most calls will be made to these countries, and a few to Germany, Spain and the Netherlands).
Ideally, I just want something I can fill in my details for, not have to talk to sales reps, and not have a minimum number of users I need to pay for (it's just me).