If you’re curious about synths, I’d actually say it’s better to start with an instrument that’s standalone (that is, doesn’t need a MIDI controller). The HiChord is a good choice. I’ve personally had lots of fun with Orchid by Telepathic Instruments. And anything with a keyboard by KORG (including the VERY affordable volca line) is also a great starting point.

Once your first synth starts making sense, you’ll get the itch to buy a second, and it’ll be time to delve into MIDI :)