I use a 3 mobile bill pay sim card with a huwaei router. Its 30 euro a month unlimited data. They provide the simcard and the router and you put the sim card into the router I only use it for the wifi. Its a holiday home which we use alot. I have worked remotely there for the last 5 weeks. You can cancel any time with no penalty. You can check the coverage in your area using the 3 mobile coverage checker. We have no issue with gaming ( fortnite, roblox etc,) Netflix on the smart tv, and streaming news on a laptop all at the same time. Can't remember the name of the package but you'll find it if you google it. We have lost signal once in the last two years for about 3 hrs. This was last Sunday
Edit. Forgot to add that there is a one off charge for the router. I think it was about 60 quid. What I like about this is that you can take it anywhere with you that has 4g coverage with 3.