Lots of good advice in this thread already but here are some more thoughts.
If you are looking to learn and enjoy electronics as part of your retirement you are almost for sure headed for an oscilloscope. And maybe more than one. There is another thread about how 19 scopes are what you need to reach “par.”

Before you head for multiple scopes it’s probably good to start with one. My suggestion would be to purchase a Rigol DS1054Z, and to order it from TEquipment.
https://www.tequipment.net/Rigol/DS1054Z/Digital-Oscilloscopes/?v=0It lists for $375 including shipping and it also includes Rigol’s bundle of software options. With this scope you can do power supply work, other analog work, and also explore some digital work including RS-232, I2C, and SPI. This doesn’t mean you might not still want a logic analyzer some day but it will get you started with digital which can be useful and fun.
TEquipment offers a discount for EEVers, so it might be closer to $350 all in, and they offer a 60 day money back guarantee. (Disclaimer: I have no affiliation with TEquipment other than being a happy customer.)
If you want to save more, TEquipment currently has an open box 1054Z for $265.
https://www.tequipment.net/Rigol/DS1054Z-B/Digital-Oscilloscopes/• One thing to check on with the open box deal is whether the bundled software comes with it
Either way, you could spend more on a scope with other features but the 1054Z will get you going and you will have a ton of people here who will be able to walk you through almost anything related to this model. Some people here will say much the same about the Siglent scopes. I haven’t used a Siglent scope but I have used a Siglent 2042X waveform generator and it is excellent. You’ll find plenty of Siglent vs Rigol opinions here. I have had a couple Rigol scopes and also 3 Tektronix analog scopes and IMO I think you will be able to learn and do a lot with the Rigol 1054Z.
One reason to consider keeping the price down on the scope is that once you get going with this hobby you might find plenty of other items to add to your bench. Along this line, suggestions would be to include 2 DMMs, a power supply, and probably some sort of waveform generator. With these plus some breadboards and component parts plus EEVblog, youtube, and rest of the Internet you can teach yourself plenty and do lots of build and/or repair projects – you will be limited mostly by your time and imagination, although possibly to some extent by the budget because it can be an endless journey of more test equipment, components and supplies, and tools. As soon as you graduate from the breadboards you’ll be soldering - another addition to the budget. And it can go on and on… microscopes, spectrum analyzers, ham radio, microcontrollers, logic analyzers, etc, etc. It really doesn’t have to be too expensive, but outside of RF work the scope might be one of the larger budget items and it all adds up. So leave some room in the budget (and on your bench / in your lab) for growth. Hard to say what you might run out of first: time, money, or space - but probably not fun.

All of it can be a blast and I'm confident you will very much enjoy using your scope. Something about visualizing analog and digital signals together on a scope makes a whole lot of concepts and some of the math more tangible and accessible.
Have fun and Happy New Year!!