TLDR: get off the internet and listen to musicians in person. Never buy something based on a Youtube video or a forum recommendation. Yes, Covid is going on, but there are still some outdoor shows happening. Maybe not hard rock/metal type shows as much, but foundational tone is what you're trying to build and then it's just a matter of finding the right dirt to throw on it.
That being said, here are my forum recommendations.
+1 to the comment about tone chasing. Careful with it. It will distract you from making music and improving your playing, and you'll start to think that your tone depends more on your gear than on your ears and fingers.
Don't drop a ton of money at once. Gear breaks. Add one thing at a time and get to know it fully. Stick with tried-and-true equipment, not fancy bells and whistles. Tech 21 is a great example of this - industry standard gear, used by professionals to get great tone, the stuff just works.
Also note - and drill this into your brain - that your rig sounds completely different in a live situation than at home by yourself. Maybe you know this already. Heck, I've been playing 19 years and I STILL forget it, only to tweak my setup to sound great at home and then all hell breaks loose when I play with a drummer and all the beautiful tonal subtleties I've built up are completely toasted because the
mix starts to matter.
Focus on the music and on your playing. Changing string material & size or pick gauge can make as much of a tonal difference as buying a $1500 Mesa Boogie head. This is a fact. Fat pick and heavier gauge strings (11s or 12s) get me a very tight sound, way more so than 10s. Also some kind of EQ or filter between the guitar and the amp to cut the bass helps IMMENSELY to get the tight distorted sound.
I also recommend a 2x12 over a 1x12. Wider sound, better projection, better cut. I'd take a crappy or mid grade 2x12 over a nice 1x12 any day. This may be a mistake, but again just my experience over them years of playing.
I played tube amps for years - great experience to get to know the "feel" of tubes, so that I could get myself a solid state amp with a similar feel. Lighter, cheaper, less fussy, same round feel that the tubes gave.
Or you know, do whatever you want