Sailor sells empty cartridges for syringe filling. While this sounds completely pointless given you could just buy one filled with ink and then use the empty I believe they are made with more robust plastic that prevents stretching at the neck after several uses and the potential for an unexpected leak or excess flow at the nib. Something to look into.

You should look at kakimori dip pens. It is highly regarded in the reviews I've seen except perhaps the standard pen nib attachment which in one review was considered scratchy and stored very little ink.

HP Premium 32lb paper is widely regarded as the best fountain pen friendly printer paper. $15 for 500 sheets. It is really thick (120gsm).

An interesting read that confirms many of my thoughts regarding the rise of negativity and hopelessness in the modern world. It explains much of what I feel well. Thanks for sharing.

Midori MD pads with one of their covers work well and aren't too expensive. Available in A5 and A6 if I recall. Otherwise as already mentioned I like the 90gsm Rhodia or Clairefontaine notebooks. The 80gsm Rhodia paper (found in a lot of their pads) always feels like the backside of the paper has less coating on it and not as enjoyable.