My personal philosophy investing in the best, I would rather buy something that is pricey but I know I gonna love it and can style it in any way, rather than going for cheap accessories which are common and you end up buying so much of it that you also get easily bored of it. Yes, here I am talking about minimalism intentional consumption.
The first accessory I would recommend someone to have is a wallet/card holder, now people end up buying wallets and card holders that are average in design and prices which they end up getting bored with within 3-4 months, I personally believe in having both a wallet and a card holder because sometimes when you are in a hurry you can just put the cardholder with you and you are good to go and sometimes the wallet is too large to fit in a small clutch so then you can take your card holder with it, wallet/ cash holder. I would recommend saving up and buying a luxury wallet or a cardholder as it is the best way to start a luxury collection and it stays for a long period. The second accessory is a pair of sunglasses because you have to protect your eyes from the sun but also help elevate your outfit. You need at least one pair even if you are not a fan of sunglasses. everyday
The third accessory is an everyday bag, now this should be a piece of investment not too pricey but at least a bit above average as you have to carry this every day because the looks also matter. I would recommend it in a neutral colour as the neutrals would complement every outfit. Lastly, staple jewellery, you should have the signature jewellery that you wear every single day be it a bracelet, necklace, ring etc. Wearing jewellery elevates your look. Now you can decide what the colour of your staple jewellery should be, if you have a cool skin tone go for silver jewellery and if you have a warm skin tone go for golden jewellery. Now apart from these 4 essentials, your shoes are also an important part of your style and worth investing in as it is also part of accessorising.