Moka pot! easiest and cheapest way to replicate espresso at home without having to shell out for a machine. i also love to buy nice beans-- local roasteries usually have great selections so you can find a type you love. it feels a little expensive sometimes, but if you like it enough to stop going out for coffee so much, i think the money adds up in the end. A milk frother can go a long way too. Nothing fancy, i just heat my milk up in the microwave and then froth it if I'm in the mood for a latte or something like that. u can also get a syrup flavor or something to switch things up.