You really need to clarify what you need to insure to get any useful advice. As above, the limits on various policies mean that what is great for one person is useless for someone else.
FWIW, I went through this 12 months ago when the previous M&S terms changed for me. Outbuildings is one potential catch and the maximum amount for a single bike is the other obvious one. £2k seems to be a fairly typical limit. I was less bothered about cover away from home, more about someone taking the lot from home. Some companies will let you specify higher value items but it can get pricey.
I ended up with a decent quote from Hiscox, but when I went to cancel the M&S renewal they came up with a much better quote than the website so for the sake of a few quid I ended up just renewing.
This year’s renewal quote just arrived and seems pricey so will be watching here for more good ideas …