I use a Vistron DB15-BD with my Minimig, it's available
here.
It works very well and has VGA, SCART, UHF, and RCA inputs, so you should be able to connect most home systems made in the last 30 years, to connect the Minimig's audio you'll also need to buy
this cable. It also has a 3.5 mm out so you can connect it to an amplifier.
If you use their super saver option you should get it delivered for free, I can't remember the last time I paid for delivery from them.