Nootropic ingredients are mostly all I use any more for the last couple years, basically. As a strength athlete I do not want extra pumps crippling my volume work, and I pump up plenty just from my AAS and electrolyte & carb intake.
Caffeine, choline, huperzine A are training staples for me. Carnitine has some nootropic qualities as well. Tyrosine is great. ALCAR, DMAE, Pregnenolone, Theobromine, Theanine, Noopept, B6/P5P, Mucuna Pruriens, Theacrine, Ephedrine, amphetamine analogs, all can have their place. Some people like Kava.
SNS Focus XT is the bomb. It’s affordable, tasty, and loaded with basic nootropic staples at useful doses that jive well together for a mental boost that is low stim and pretty much purely beneficial in mostly every scenario, besides heading to bed.
The point of a nootropic should be to enhance the ability to focus. This is usually done by enhancing alertness, energy, and mood without a significant rise in anxiety or jitters - you want to feel in control, locked in so you can be present and flow. The idea with stims needs to be optimal boost without a compromise, not maximal stimulation.