I really need some advice?

My one year old Miniature Jack Russell barks whenever he sees another dog.I've had him for about 3 weeks now.When I take him for a walk,if he sees another dog he starts barking rally loudly and pulling on the lead and ends up choking himself and he doesn't stop.It is getting really annoying.What can I do to stop him doing this?Should I like get an anti-bark collar or something like that?Or should I take him to a dog trainer?Or what should I do?Thanks in advance.Please no nasty comments.