Yes - they are often a FFBO for me.
I currently own five and am not looking for any more:
1) New Navy blazer (part of a suit) added 2024
2) Second hand black tuxedo blazer - added 2023, mostly wear at night
3) Second hand cream linen blazer - added 2023, good in transitional weather
4) Second hand mustard blazer - is my most fitted, love the colour but I don't wear it a lot - added 2020
5) Soft grey blazer - new in about 2017 or 2018 - my most worn, really useful neutral colour. Still love it.
I mostly wear with jeans or pants for work, but will wear socially in the weekends as well.