The Miniduino brand feels approachable, and you will find that the pin markings are clear enough for beginners.
IDEC HW-CL20 White 2 Pos. Maintained Push Button HW-GA1 HW-G10 (VT)
This relay carries the Dold brand, and I noticed the finish looks solid, which matters when you want dependable for basic jobs.
It's a nice touch that the Uxcell brand appears on this relay, suggesting thoughtful production choices.
When shopping, you will find that the JQC-3FF-S-Z is widely available and affordable.
A nice touch is the subtle Bradley mark, which blends well with the rest of the relay's design.