Two things from an "every four years guy":
1. Messi has definitely stood out this tournament for his skill. I'm sure some of that is announcer stuff seeping in but he seems really good.
2. What is the most accessible league to watch? Premier? I say this every four years but I want to try to get into soccer. Now that I work from home all the day action in these leagues would be great assuming they're on TV.
Premier League would be very easy. Their contract is owned by NBC, so at least 2 games every weekend are on the main channel. Peacock carries every game that doesn't get national coverage.
NBC also has a YouTube channel that has highlights of every game put into an easy to handle 6-8 minute video. This is a great way to get a "soccer fix" without jumping all the way in.
NBC YouTube
Champion's League and Europa League(the two biggest club competitions in the world) are both almost exclusively on Paramount+, so you have to pay a fee to watch them, but every game is watchable if you do.
CBS/Paramount also have the rights to Italian Serie A(their top league). You can watch every Serie A game on Paramount and sometimes big games will be on the network.
The English FA is contracted through ESPN. All FA Cup, League Cup, and lower division English games are on ESPN+.
ESPN+ also has the German Bundesliga, so all top German games are on ESPN+
ESPN+ also has La Liga, so all top Spanish games are on ESPN+
ESPN+ also has the Dutch Eredivisie, so all top Dutch games are on ESPN+
Again, like CBS, some of the big games from these leagues will find their way onto one of the parent stations. I believe it was this year that I watched Dortmund/Bayern on ESPN2.
French Ligue 1 is on beIN sports... don't have this personally, so no idea how much coverage they have.
Reality is that you can watch soccer almost every day of the week if you're really inclined to it, but having an ESPN sub and Peacock sub will get you a long ways towards watching the teams you want to see.
Careful, the rabbit hole is deep.