Buy a MiSTer FPGA and run Amiga Vision on it. You can plug in a proper keyboard and joystick and you can map jump to a button instead of up as it traditionally is on Amiga.

I have to admit that it's better than using my A500/A1200s.

If you're not sure to invest in special hardware, cloanto offers bundles including most kickstarts and some software (games / apps). That's the easiest and cheapest way to get started. A500mini might also be a relatively cheap option with some modern possibilities (SD cards instead of floppy disks).

1. Get a copy of the Amiga 3.1 Kickstart ROM (v40) and Workbench disks (for example by legally buying Amiga Forever ... or other ways). If you do buy Amiga Forever, they've put together an Amiga emulation environment for you with lots of software pre-installed.

2. Consider buying AmiKit or using its free version: https://www.amikit.amiga.sk/ -- it needs the aforementioned Kickstart ROM and Workbench Disks, but again they've put together an Amiga emulation environment for you with lots of software pre-installed.

3. If you don't want to use those pre-made packs, install WinUAE (for Windows) or amiberry (for macOS/Linux) yourself, configure them yourself with the ROM... and extract the Amiga hard drive image included with PiMiga 4 to enjoy an alternative pack. PiMiga is a Raspberry Pi image that includes an Amiga emulator for the Pi and a huge Amiga hard drive image -- simply use software to read the PiMiga Linux ext2 filesystem and extract that hard drive image to use it on your own emulator, no RPi needed (https://old.reddit.com/r/amiga/comments/1dfcn8u/extract_amig...)

I am very happy with AmigaVision, packaged by Alex Limi (of early Mozilla Firefox UX/product fame) et al.

AmigaVision is a carefully curated collection of game and demo configurations for the Amiga computer platform, as well as a minimal Workbench setup with useful utilities and apps, wrapped in a user-friendly launcher.

https://amiga.vision/

https://github.com/amigavision/AmigaVision

I run it on a Mister FPGA but there are multiple other ways to do it, including emulators running on your regular computer.