Contrary to other PPs, I like my full size integrated fridge. It rarely looks stuffed and the top shelves are usually empty which is handy for when I need to put in something big e.g. a lasagne dish with leftovers, or storing cold dishes when entertaining.
I also have one of those shelving units (in a corner) with a louvered, sliding door thing (goes up and down) - it's near the kettle so I can keep all cups, coffee, tea etc in it, and also space for toaster, food processor, odd jugs etc. It also has three sockets so I keep my phone charger in there. So handy to pull down the 'door' when I want the kitchen to look tidy/uncluttered.
I wouldn't spend much on a microwave unless you use it for cooking. I have a combi-type one but all I've ever used it for is microwaving or defrosting.
I have no wall units (apart from an end-wall unit which houses the oven, microwave and fridge, and above louvered-door unit. It also has drawers under oven for storage.
Everything else is drawers - larder drawers, big drawers under hob for pots, pans etc. Also have one one those pull out spice drawers - great for spices, oil etc.
I love the drawers!!!!!! They are so, so easy.
Also have a small cupboard (under the breakfast bar) which is where I keep cutlery and everyday crockery - ideally placed near the d/washer so very quick to unload and store clean things.
I have an open-plan kitchen so planned it for everything to be hidden away for a minimalist look. But I am lucky to have a 'second' kitchen/utility room - just off the kitchen which is fitted out with a larder cupboard and a long worktop with drawers underneath. I use the slow cooker out here.
I opted for a basic cupboard under my sink rather than the 'drawer to house bins' option. This is because I don't mind a free-standing tall Brabantia bin and i can move it around as needed. And I just have a big shopper bag in utility for recycling.