Oh, well... easy Scouts only then, and some mat collectiing would do.
Saw a few vids with T-10 being in fight with bigger ones, so I become interested in this flying fortress
T10s are really not recommended to fight Interceptors in, it is one of the absolutely worst ships to use for that purpose. The videos you have seen are by highly skilled AX pilots that have already progressed through the different types of Interceptors using meta ships and look for a new challenge. Those that have killed Hydras with T10s have done it once for the challenge and then declared "never again!" It is just a bad time.
I know for a fact that Brother Sabathius on Twitch has killing a Cyclops with a T10 as one of his stream challenges. It is a rather meme thing though and he has a lot of AX experience.
For scouts, anything goes. Just slap a couple of large turreted AX MCs on, a decontamination limpet controller, some cargo racks for the limpets, and some hull reinforcement packs, and you are ready to go. This goes for basically any ship, not just the T10. You can fill any remaining hardpoints with regular MCs as they at least do some damage to scouts (they basically will not harm Interceptors though).
only as a support ship in Wing Interceptor fights...
The thing with wing fights though ... you don't really need support ships. With instances bugging out and the invincible heart bug being a thing, the best support you can offer is being in a self sufficient ship capable of looking after itself.
Edit: Also
preferably without Guardian modules or weapons?
Without Guardian Gauss Cannons or other Guardian weapons as a beginner you are not very likely to succeed in killing any interceptors. AX MCs do not make much of a dent. There is a reason that killing a Basilisk using no Guardian modules (including weapons) is the most difficult (and therefore rarest) challenge rank on the AXI discord. It is simply brutal.