Working again after 72 retirement questions

[SLYKTAX]

I retired on 2020 at 70 and is now 72+ and had taken my 1st RMD last year.  My wife is the same age and also had taken her 1st RMD last year. 

After 2 years of retirement, I got bored and like to go back to work again. If I go back to work and have earned income, can I contribute to IRA and Roth again since I also need to take my RMD every year? 

[MinhT1]

Yes, you can contribute to an IRA or Roth IRA if you have earned income regardless of your age.

For 2020 and later, there is no age limit on making regular contributions to traditional or Roth IRAs.

Please this IRS document for more information.