You can look for someone in phpbb forum itself. they do have marketplace there. PHPbb somehow isn't so customizable. My suggestion is mybb, its much easy and there are lots of plugins to it that you can installe. I do own a forum years ago, I somehow earn good from it through ads bu something happen and sold it.
thanks for letting me know, problem is the phpbb forum don't like bitcoins lol, its why I am asking here, I am looking for this because I started this forum years ago and you cant move the user database from one setup to another, or I would have done this in a shot, I am realizing now how bad addons and custom work does not work well on phpbb :-/
tho as I am unpopular I am also considering building a new site, start anew, but I would need some help :-o
Why not just import your database to mybb. It wil work as I have done it before. Try asking the users in mybb forum, there are things you can tweak to make it work. The phpbb database can be imported on mybb. You should be able to do that with their help. The mybb forum is always busy the users are approachable too.