File tools
https://tinywow.com
https://www.paraphraser.io
Adds creation
https://adspy.com/
https://apptica.com/
https://bigspy.com/
Automated marketing
https://encharge.io/
https://rejoiner.com/
https://shoelace.com/
https://convertkit.com/
https://elasticemail.com/
https://www.getvero.com/
https://cm-commerce.com/
https://www.memberstack.io/
Platforms
https://angel.co/
https://www.producthunt.com/
https://www.indiehackers.com/
Evaluate market fit
https://blog.ston3o.me/10-etapes-pour-prototyper-et-tester-un-business-en-ligne-en-1-jour/
https://www.indiehackers.com/article/what-makes-developers-bad-at-business-ae6b4ee0c6
https://www.indiehackers.com/businesses/logojoy
https://www.indiehackers.com/post/how-we-tripled-user-activation-rate-on-our-saas-product-05d226637b
Community building
https://www.notion.so/Community-Building-Resources-448d133dd3f24ca5a7117ecd8e5eaedd
Business model
https://www.indiehackers.com/post/is-freemium-dead-9678566519