Welcome. Be prepared to be overwhelmed.
Do not rush to buy. Since racing seems to be the goal, I’m going to assume there’s a track in your area. Or within a reasonable drive. Over this summer I’m finding that in my area, an hour drive(50-60 miles) seems to be the limit for the average person.
the vehicles you listed
Options I have looked at this past weekend:
Traxxas Slash/Rustler 4x4 (what I always thought I would get but have heard bad things about Traxxas)
Losi Tenacity TT Pro
Arrma Senton 4x4
Losi Baja Rey
Arrma Kraton 6S
non of these would be considered “race grade”. A lot do have 2wheel Slash based “novice” classes. But that seems to be the limit for it.
Visit the track if possible. See what’s offered.