If you can block all DNS traffic on you router, you can them redirect it to your own DNS server.

And PiHole seems to be the one many people use for that. Lots of guides for it, pre-made list on what to block etc.

100k rows is a small data set for a lot of what I look at, but that is at work.

Let me split it down.

For work use, 100% has to be Excel. For personal use, either of the FOSS is more than enough.