You can head over to r/iptvreviews and ask for trials. Get as many as you can and see which one serves your needs best. As for apps I recommend tivimate for m3u lists and iptv smarters pro for xtream codes.

Look on youtube by searching for iptv on sony android tv.

To make things a lot easier! you can buy FireStick 4.

Send me a pm with your email and I will direct you with our service.. 24hr trial. But, its strongly recomemded a VPN. UK blocks a lot of IPTV’s