What do you need to know?
Is there any 10Gbs requirements?
Have you installed cat6 or 6a?
One thing I’d say off the bat is if you haven’t & you still can get a couple of drops put into the loft space & a couple of mains sockets. Very helpful for wireless access points.
For the frame end I’d go with keystone jacks & patch panels rather that traditional punch down patch panels, one they are easier to work on / terminate, two they are more flexible need to distribute coax, analog phones, cctv, etc, then you just change the type of keystone module to suit.
Unless going 10Gbs a simple continuity tester should suffice, if you need to test speeds you can do this with two wired computers, you can cover 10Gbs testing this way to just more expensive if you don’t already have the network cards.
What are you networking requirements are you looking at a software defined network like tp-link Omada or Ubiquiti Unifi platforms?
This is where your fw/router, switches, accesspoints are all managed through the same interface making fw rule, vlans guest networks, IoT networks all relatively easy.
Or is this a more basic requirement?
Any cctv requirements?
The questions can go on & on
Edit:
I forgot Kenable are a good quality supplier for all things network cabling related.
https://www.kenable.co.uk/en/search?...=Keystone+cat6