turns out you can play minecraft classic for free at classic.minecraft.net : r/Minecraft

Minecraft's Herobrine world seed has been discovered

How to Play Free Minecraft Classic Edition

Multiplayer – Minecraft Wiki

Play Minecraft Trial Online for Free on PC & Mobile

You can play Classic Minecraft in your browser. This also has multiplayer through a shareable link. : r/teenagers

Minecraft Classic RE-RELEASED For FREE (10 Year Anniversary)

How to Get Minecraft on Your Chromebook

How to Get Minecraft on Your Chromebook

Minecraft Classic free on browsers in celebration for 10 year anniversary. : r/pcgaming