Being Superman is probably the best. Functionally immortal, perfect disguise is just 1 pair of glasses away so you can still find love, hold the world hostage for unlimited money you can move through a swiss bank.
Wait a second.... if Superman needs a yellow sun for his powers, and each galaxy is like, reeaalllyyy far away, then wouldn't he run out of sun energy shortly after leaving our galaxy?
I think you're confusing "galaxy" with "solar system", but presumably he could pick another suitable star, accelerate to light speed (or however fast he can go) in that direction, take a nap, and then use the destination star's power to slow down.
I mean, assuming that I only have the features of Superman but real world physics still applies, everything is so fucking far away and as far as we can see, there's nothing out there. Like yeah, I could spend a few years observing stuff like black holes, stars etc. from upclose but I generally get bored with repetitive stuff.
Once you have a ton of money how do you separate true love from people who just want to be around you for your money? Look at the personal lives of billionaires. These are highly dysfunctional people.
I feel like professional match makers would be the best way. You get the personalized touch of a real person, and have an intermediary if things go bad.