Responding to just the OP and not any of the endless stuff that a thread about vaccination inevitably spirals into, personally I'm holding off for a while on another booster, and may end up just getting one annually as some others have also indicated. I've had three Pfizer shots (third one was a booster in December 2021), but then got covid in March 2022. Odds seem very high to me that it was omicron as that was the predominant strain at that time where I live, and my syptoms matched (severe runny nose for several days, some aches and one night of fever and chills). It was very mild and overall now I think my immune system is well-prepared at this point. And key: right now I can travel anywhere I want to go with the card showing 2 vacc shots + booster. If that changes then I'd go get another Pfizer booster if required for travel. Or if I had an underlying health condition that I thought warranted another booster, sticking with the same brand I've had before. An elderly family member has had two boosters.
That's just me. As for others, I support everyone deciding on their own what is right for them, just as OP is doing.