Following on from my query in Encercle Sans, I found a font that may be of interest and use too members of the forum,
It’s called Numbers with Rings by the prolific type foundry Typodermic, a large design studio that really knows what it is doing.
It is of course a commcercial font, but so is Encercle Sans. This font can also do various enclosing shapes and it very flexible and advanced.
Disclaimer: I do not work for Typodermic.