Out of the companies large enough to do a weekly show, AEW are the one I watch most frequently. I have a subscription to Powered4TV which is 8 quid a month and has a lot of different companies signed up to it. My favourite company are probably my local one, TNT Extreme Wrestling, as they have a mix of styles although they tend to be more on the hardcore/deathmatch end of things!
czw is also crazy hardcore
remember the AEW deathmatch pyro, did not end well