Hello mate - pretty much all the ink writing I do is with a fountain pen - some are good - some are not - including many that - at a greater price - ought to be much better - drying out, or just pishing ink everywhere - for no readily apparent reason - within your stated budget - and from personal experience - I have used all of these models - and can recommend - the links are to a UK supplier - I have no idea where you are in the world - but you should be able to source them in most markets -
The classic and popular Pilot V4, or Vpen, is a disposable fountain pen with a quality steel nib in 0.58mm medium point. Unlike most other disposable fountain pens, the Vpen nib has real tipping, making for a smooth, rounded writing point, and a much more enjoyable writing experience. The...
www.cultpens.com
Bomb-proof - but are not refillable - for the cost - a superb nib. They will stay wet for weeks between uses.
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www.cultpens.com
For the price - a stand-out - takes standard international refills - or - surprisingly a converter - but I wouldn't bother with the latter option. A pig to clean between ink colour changes.
Disposable fountain pens have a wide appeal - they have the sophistication of a 'proper' writing instrument, but with the convenience of a ballpoint. Zebra's Disposable Fountain Pen is available in a useful range of colours and the medium stainless steel nib is extremely smooth. The barrel...
www.cultpens.com
In terms of the best writing experience of the pens I am highlighting - this would be my choice. Not refillable.
The finest UK online pen shop: 24,000+ products at great prices. Secure ordering. Expert knowledge. Best customer service. Free UK delivery and worldwide shipping.
www.cultpens.com
My second choice of the above - refillable but, with propriety Platinum sized cartridges - not a problem really - as they are easily available and cheap - you can use international standard refills - but you'd need to get a converter cap - probably not worth the hassle.
Bear in mind - that all these pens are Japanese made - so - when they describe a medium nib - it means fine in European standards - extra fine - even more so - so - if your writing needs a broad line - you are going to have to stick another £5 or £10 on your budget - to get something suitable - ditto - stub, italic or flex nibs. Hope this helps - yours - I.
@Blademonkey