I loved Lyle McDonald’s General Bulking Routine (GBR). It is simple as all hell and can be done for years.
I made good progress on a bro split after that and used one for my only show, but more so for bringing up lagging bodyparts to a degree, which is what I think a bro split provides for natties who built a good amount of muscle with a more basic routine.
I once LARPed as a permabulking wannabe powerlifter and used the Westside Conjugate Method and liked it. I bought into the notion that one had to LARP as such before just being a hypertrophy bro or competitor.
I recommend the path of full body—> upper-lower (like GBR) or PPL —> bodypart split for fulfilling one’s potential in muscle size.