A few sneakers: leaning on minimal whites mostly. Leather (like Koio), Canvas (liking Cariuma simplicity atm), or a plain Stan Smith is a nice in-between.
Have some flat colors to change it up (skater/Samba-like).
I don't do chunky sneakers unless I'm actually working out.
Boat shoes aren't in, but if someone had canvas Sperry/Seavees, they work with preppy looks (rebranded old money atm).
Unlined suede loafers have been a strong go-to lately. Socks are trendy with them, but I'm not doing it. Thinking of espadrilles, but haven't done them.
If you're in mostly casual situations, I don't think you need much at all.