Having lived in and ridden
Having lived in and ridden around the capital for well over a decade, I kept different locks for different situations. Indoors I’d bolt mine to the floor using a Kryptonite New York Chain, I’d have an Abus Steel-O-Flex for around town coupled with an older New York short shackle U lock. Heavy but very effective and while I never used to leave machines in a regular spot, frequently alternating locks makes it far harder for the steal to order brigade to arrive tooled up ready to tackle a specific brand.
Take photos and note particulars of components/unique features- I had jewellers engrave stems with my name while also incorporating some other very personal touches. Laminate a snall photograph with your date of birth on the reverse and pop it in a handlebar end. Should the worst happen and you spot it in the street and a Police officer is nearby you might even reclaim it(I knew someone who did)