Everything in antenna connectors for your antenna installation, e.g. quality antenna connectors from Triax, CableCon (Self-install), Comega and Televes.
It is important that the antenna plug in an antenna installation is of a high, shielded quality, as old-fashioned, inexpensive antenna connectors with plastic sheaths are not noise-proof and therefore cause problems in modern TV installations because of 4G/LTE noice.