T-Mobile's Go5G Plus offers unlimited premium data, starting at $90/month for one line. If you use a lot of data on streaming services, Go5G Plus also comes with free Netflix and AppleTV+.
Plans with unlimited premium data means you can't get slowed down no matter how much you use.
AT&T's Unlimited Premium offers unlimited premium data, starting at $85/month for one line. While there are no perks, this plan also offers 50GB of hotspot data which might be useful to those who don't just use data on their phone.
Plans with unlimited premium data tend to be more expensive, but if you use a lot of data and hate being slowed down it can be worth the money.
Verizon's Unlimited Plus offers unlimited premium data, starting at $80/month for one line. Verizon also offers the choice to mix and match perks, with each perk being an additional $10/month.