This is intended to point you in the right direction with equipment that is good value and should last a long time. I will try to add more items as I get time, but please let me know if there's anything specific you would like advice on. I have no affiliations with any manufacturers or websites.
Below is a kit of 3 items that work together to make a good tripod on a reasonable budget. You will need all 3 items to make a useable tripod. Ball head obviously screws to the top of the legs, and the plate fixes to the bottom of your camera and slots into the head quickly.
I have no affiliation with Benro or Rubbermonkey, we order a lot of gear from them and if it's in stock it arrives very quickly and always had good service from them.
Look on your lens to find the filter size, usually marked as 'Ø58mm', then find one that matches. The more expensive polarisers will have better light transmission and longer lasting coatings that will be easier to keep clean.
Neutral Density FIlter for long exposures in daylight. I recommend you buy one for your biggest lens, then you can just hand hold in front of other lenses. This one blocks 6 stops of light, mine blocks 9 so anything 6-12 stops will give you 15-30 second shutter speed in daylight. I don't recommend the variable ones, double the glass, more expensive and they tend to add a colour cast to your images.