[sattoshi]

My first thought was THC Hydra [1]

[1] https://sectools.org/tool/hydra/

[gravypod]

My first thought was NZB Hydra 2 [0]

[0] https://github.com/theotherp/nzbhydra2

[anamexis]

My first thought was the thread executor of Typhoeus [0]

[0] https://github.com/typhoeus/typhoeus