Black Wireless 50GB 4G Data per Month + 20 GB Hotspot Per Month + Unlimited Calling for $25/Month (3 Month plan) $75

https://www.blackwireless.com/plans
Black wireless is offering a $25/Month ($40/Month originally) plan on T-Mobile Network
it offers the following main features:

• 50GB 4G Data per Month (128KBPS thereafter)
• 20GB of additional Hotspot data per month
• Unlimited Talk and Text
• International Calling to 50 Countries is included.

it’s a multi-month plan so you have to buy it for a minimum of 3 months; other options are 6 months and 1 year.
so minimum you’ll be paying would be 25×3 = 75 + Taxes (minus any referral bonus)
Ports (Transfer your mobile number) are prohibited from any T-Mobile Postpaid or T-Mobile Prepaid Service Provider.