Why not a Hantek DSO2D10. Then you kill two birds with one stone. It has an AWG and an oscilloscope to make signals visible. Search for it on Banggood or Aliexpress to find the cheapest one. Even the FNIRSI 1014D might do for learning. It is slightly cheaper then the Hantek, but also offers less quality.
Another option could be a three in one handheld like an Owon HDS2XX. This gives you an AWG, DMM and an oscilloscope.
For learning electronics you need something to show what a circuit does, so the minimum would be a DMM. Just a power supply and an AWG will not get you far.
OK I see now I should have mentioned that I already have everything else.
Have a Rigol 1054Z, both Brymen manufactured EEVBlog DMMs and also an Amprobe
A Riden 6006 with a MW PS. (And yes I can use these properly)
Also a s*itload of different leads, probes, cables, connectors, tools and a very decent parts stockpile.
I'm an engineer and had EE classes and labs during university and realized last year that I loved those so I started it up as a hobby and plan on taking it to the next level:)
Gone trough all experiments in Make electronics and am halfway trough make more electronics and also built some fun projects at home (like an selfdesigned BBPS with 4 selectable voltages and LED dimmer with 555 that goes almost to 100% duty cycle (with that fun method using diodes).)
So this is the background that I wanted to spare in the first post
And thats why I need a 2-3 channel PS and an AWG.