3-1-2 or triple 10?

Hello, I live in Rhode Island which to the best of my knowledge is zone 6b. As stated in my previous post I will be growing a pretty large variety of peppers this year. Normally during the growing season I don’t fertilize at all and have great success with Hungarian wax peppers and other varieties I grow. Last year I used some 10-10-10 and saw a little improvement but nothing spectacular. Normally my peppers (pictured above) get between 18” and 30” tall with a decent yield. What would you all recommend as a liquid fertilizer for these guys as well as the plants I intend on growing in pots? 3-1-2 was recommended by a popular pepper YouTuber and his plants were about 5ft tall so I’m inclined to believe him. Any advice is welcome.