I started with a August DVB-T210 single tuner for Freeview some years ago and it is still available. After a year or two I wanted a second DVB-T2 tuner so replaced it with a Hauppauge twin tuner. It was unreliable to start with and the UK support were not helpful at all. However I got it working and it has been reliable for the last couple of years!
Chris
NextPVR Server - HP N54L Microserver, Windows 10 - Storage 2 X 3TB - Tuners DVBSky S952 Twin DVB-S/S2 PCIe, Hauppauge Twin DVB-T2 USB, Telestar Digibit R1 Sat>IP Server.
Clients:- 2 X RPi3, 1 X RPi4 and Acer RL80 Celeron Nettop all running NextPVR New Client on LibreElec.