My advice would be to buy a good quality airbrush and compressor to start with.
Mainly because so many of the cheaper ones are unreliable, poor quality and lacking availability of spares.
Also you will find it much easier to learn with a decent airbrush that is also simpler to clean and maintain.
If you stick to the trusted brands such as Iwata and H&S you won't go far wrong.
Some brands have recently flooded the market mainly from crazy giveaways and paid YouTube promotions.
I have heard that negative comments have been removed from various websites, durability is still an unknown factor.
My choice would be an Iwata Eclipse HP-CS, it is dual action gravity fed with a 0.35 needle.
It has a drop in nozzle which is easier to remove and clean than the small delicate screw in type.
Also has solvent resistant seals which allow for the use of most mediums without damage.
The needles in these are definitely stronger than those found in cheaper brands and have more survivability from accidental knocks.
If required it can use a larger 0.5 needle, this requires buying a new needle, nozzle and nozzle cap.
Every part is available to buy from the smallest air valve o ring to a new main body
Compressor wise many people use the various generic FD 186 type, no experience personally, but they seem to last a few years.
Sparmax do a decent range of compressors with tanks in a metal case, something like their 610 or 620.
Iwata do a wide range too, small piston type such as the Sprint or Smart Jet up to large models with tanks that can run two airbrushes simultaneously.
To tank or not is another decision, pros and cons for both, plenty of opinions so its research time for that.
Another essential item is a spray booth to extract the particle filled air, even if only using acrylics.
This is another wide ranging subject and best researched on the internet.
Just ensure you have the right booth for what you use, so no lacquers with a basic 60 quid computer fan model.
Bench Vent are the popular choice for more noxious mediums, I only use water based acrylics and have a Sparmax SB-88
A very good book to read is "Airbrushing for Scale Modelers " by Aaron Skinner.
It gives a lot of good advice on choosing, cleaning, operation, paint and actual model painting tips.
[video]https://www.google.com/search?sca_esv=3e908ee134019f67&q=aaron+skinner+ai rbrushing&udm=7&fbs=AIIjpHxU7SXXniUZfeShr2fp4giZ1Y 6MJ25_tmWITc7uy4 KIeioyp3OhN11EY0n5qfq-zEOxsIYwPQb36PTLe7-SRyF6OIc4DYEUfoV5VibGKb1Sn5VtjwNvZs6y8CQHj0e3UAYxH 8LKu2T3q0oo3e35MRxjUz8zSjUnmj7iToNM54WRg-dbZcLacarWsnEyfLMpjOu5t7f5m0Tq2FD7bVXeA9apyK7g-g&sa=X&ved=2ahUKEwiprJr7396NAxXLW0EAHRFcD88QtKgL eg QIFRAB&biw=1872&bih=1052&dpr=1#fpstate=ive&vld=cid :fb281973,vid:GDTuKFL0C-Y,st:0[/video]
Sorry for the long post, but i hope its been informative and if you think so please feel free to PM me with any other questions.
You may have noticed i'm rather keen on airbrushes etc, you may have even seen my restoration thread.
https://www.scalemodelling.co.uk/fo...35695-restoration-projects-doing-up-old-stuff
Still using that little compressor alongside a Smart Jet Pro and two Eclipse Airbrushes with the different needle sizes.