Serato DJ might be a bit more popular than OpenBroadcaster. We know about 1 link to it since March 2021 and only 1 link to OpenBroadcaster. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Just came across this which could help you. Source: almost 3 years ago
Also, for software/hardware check out Native Instrument's Traktor Pro 3 and SeratoDJ. Source: about 2 years ago
AzuraCast - AzuraCast is a free and open-source self-hosted "web radio station in a box".
Mixxx - The most powerful free DJ software in the world.
LibreTime - LibreTime is a community driven fork of SourceFabric's Airtime.
VirtualDJ - Virtual DJ Software - MP3 and Video mix software for DJs
Centova Cast - Centova Cast is the world's most advanced Internet radio stream hosting control panel.
Traktor Pro - Flagship DJ software with four decks and a stunning range of creative features for maximum freedom in DJing.