Aye, aye!
As far as protein, would you recommend any plant-based proteins or is it all essentially the same?
Everyone's body and access to quality reasonably priced food is different, so just do what fits your life best. Personally I don't really keep a strict plan. I just eat what I want but I know that what I like to eat has enough protein, both animal or plant, anyway. Proteins are the building blocks of your body, so if you want to grow muscle or generate more biological matter, you need more
vespene gas raw materials.
Proper hydration is pretty important and probably the most effective thing you can do that's the cheapest. Supplements and food cost money.
Zinc is involved somehow in the synthesis of the testosterone hormone, and is also involved somehow or directly/indirectly related to seminal fluid synthesis and prostate health. Oysters are high in zinc which is why they're said to be an aphrodisiac, but that's mostly an old wive's tale.
L-Citrulline is involved in the synthesis of nitric oxide which is one of the chemicals in your body that opens up your blood vessels which is directly involved in the process of boners. Better boners = better loads. If you can, exercise your cardio too. Better cardio = better boners, but some people are too lazy to work out.
Lecithin is somehow involved in semen synthesis too but I don't know how.
I don't have the most scientific approach to this and for all I know it could just be an illusion on my part, but it seems to work. If you want to know more, other people have written lots about this subject on the internet. Just google for holy grail of cum. Again, everyone is different, so YMMV. Also don't overdose on anything. More is not always better. You will have a lot of different opinions on this too, for example some people recommend eating lots of celery, but I can't be arsed to buy celery every week.