StreamerTools

Web call system up to 1 host and 4 guests. Permit to create individual sources in OBS, useful for podcast setup.

podcastOBSweb

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Twelve47

Twelve47

twelve47.com

Twelve47 create some widgets/games links to twitch. Emote combo, Chat cloud, chance wheel, hype train and more.

Free + Paid

Software to setup interactions and automations scripts over lot of services from Twitch and YT, to Pulsoid, MixItUp, VoiceMod and many more. Have community extensions.

Free