I don't see much formal policy/discussion of 2nd booster with the new variants around. Most people I know have boosted for 6+ months and wondering if it's worth

I don't see much formal policy/discussion of 2nd booster with the new variants around. Most people I know have boosted for 6+ months and wondering if it's worth getting 4th shot but there's no official guidance. Like if you can just walk into a pharmacy and get another shot like in US I'd probably do it.