Batman Miniatures
The boardgame and miniatures world has changed so much since the early days. There are now so many games out there, and so many companies producing miniatures. So, it shouldn't really come as a surprise that some can pass you by without noticing them. This was the case for me and the Batman miniatures game which uses 35mm scale miniatures. There is already a third edition titled "Back to Gotham" which comes with Batman, Harley Quinn, Deadshot, Harvey Bullock, 4 cops, and 6 thugs. It also comes with cards, and everything else you need to start playing. One of the main game systems I buy for is Warhammer, so usually boxed games are around the £100 price point, this however (through Wayland Games at least) is about half that.
Companies such as Wayland Games have a very wide selection of miniatures available, ranging from Batman: The Animated Series, characters from The Arrowverse (the CW shows), and many comic stories such as Thomas Wayne as Batman from the Flashpoint story. I really do recommend heading over to Wayland to check some of these out.