KVM w/512MB RAM, 30GB storage $23/year
cheaper: https://www.racknerd.com/NewYear/
You can use your own domain, and 3GB is $8.99/year
Choice of data centers
Wikipedia | list of US MVNOs
https://www.whistleout.com/CellPhones/Guides/Best-cell-phone-plans
Red Pocket $20/5GB, all 3 networks available including locked phones, unlimited slow data
Tello: a la carte; $16/10GB w/hotspot & 100 min! Hard limit, one-time data packs available
H2O (ATT): $18/3GB (2GB hotspot), unlimited slow
PureTalk (ATT): $20/3GB (2GB hotspot)
Ultra (T-Mobile)
US Mobile $10/2GB light plan, $20/10GB, unlimited 2G data; 20% off for paying annually; also "Unlimited Flex" plan (annual only) with 5GB hotspot
Twigby (Verizon): $15/2GB
FreedomPop: $10/1GB, no more free plan
TextNow: free talk/text, various data "passes" available per hour/day/month; requires smartphone and app, with full Google Play Services and account
Hello Mobile: $10/1GB, $23/unlimited paid quarterly; hotspot only on $40 plan
Lyca Mobile (T-Mobile): $19/3GB, less during intro promo; probably no hotspot
AirVoice: $18/3GB w/o hotspot paid monthly, $14/2GB hotspot paid quarterly; promo pricing is confusing, hotspot plan might jump in price to renew
Ting: $20/2GB
Boost: $15/5GB, data shuts off after allotment
Boost Infinite is post-paid, but $25/month for unlimited BYOD; hotspot is another $10
Unreal: $15/5GB (1GB hotspot), unlimited slow
Naked Mobile: $35/10GB w/voice, $30/20GB data only