What's is a good age difference for baby #2

Tiffany

My son is turning 1 april 26 an I have baby fever like crazy. Idk if its bc this year has flown by...or I'm just ready to have my second baby already...but some advice on the age difference would help me. My siblings an I were 4 to 5 years apart an were not in touch so even though I know it would be up to my children, I would like them to be close if possible. So please nice feedback...not mean.

Thank yall in advance😁