If you need a solid basic charger, take a look at this FC2: https://www.amazon.com/Charger-XTAR-Battery-Rechargeable-Batteries/dp/B07H8CB588?th=1

Xtar FC2 comes to mind. It's $13 and has a super easy current-selection switch that goes down to 0.5A, which should be fine for 14500 cells.