I use Astraweb because I can buy 1000GB at a time that doesn't expire so I avoid the monthly fees. Works well for me as I don't do a high volume and it removes any feeling of pressure to use it more than I need.
watchreplay.net works for NBA. Haven't ever found a site that works for other sports.
I think you're pretty unlikely to find anything else. I doubt it's worth the effort for sites given people want their sport live.
I'm into tennis and I've had to subscribe in order to watch replays outside my timezone.
How via Stremio? None of the sports add ons I've tried ever worked.
I guess the next step is targeting preschoolers with self help.
The site says the VODs are movies. I wouldn't sign up.
Importing is your best bet.
Check out InnerTune on f-droid. You'll find it's even better than Newpipe for music.
I remember this also as I was contemplating my encryption options at the time. Pretty certain the individual was French. But for the life of me I can't find anything anywhere. Makes me wonder.
If you want Brave without the crypto crap then spend a minute or two and turn it all off in settings. You'll never see it again.
The fact that the sites are often Russian probably explains that.