[andrewmutz]

While this doesn't directly answer your questions, its worth mentioning that people interested in this topic may also be interested in the Microconf community:

https://microconf.com/

Microconf is dedicated to mostly bootstrapped SaaS founders and has a lot of members and content who fit the description above

[richardw]

The conferences are fantastic. Go to one. Rob also runs this podcast:

https://www.startupsfortherestofus.com

Youtube:

https://www.youtube.com/microconf

[hsuduebc2]

Usefull. Thank you.

[strobe]

also indiehackers.com has few success cases examples and some relevant info too