Steady income will always come to most through a salary job.
but dividend from stocks can also be a little extra steadyness.
I don´t know exactly what you mean. but i´ll stick my answer to "crypto".
1- Sigads campaign will add a little bit of coins a week to your portfolio.
2- Margin trading lending on Bitfinex or Polo. you get good rates at low/médium risk ( risk of the Exchange become insolvent, closed or scam)
3- Dividen paying assets. For exemple TAAS. Its na ethereum based token that works as a closed crypto trading fund that pays dividends quaterly.