I've been collecting credit card points and loyalty points for almost a year now, but I'm still very new and green when it comes to redemptions.

I'm looking to spend 3 nights in Dublin, Ireland in early December, and have already booked a flight. We're traveling with a group and would like to find a hotel that all of us can stay at, but I want to pre-filter it down to hotels that I can redeem my points at.

Is there an efficient way to go about this search? I have URs, MRs, SPG Starpoints, and IHG points that I could use for this trip. I've checked SPG and found a seemingly good option, although the price is a little high for the rest of the group that don't have SPG Starpoints (12k starpoints/night or 294 Euro on spg.com) and IHG doesn't have any hotels in the Dublin area that appear to be points eligible.

My more specific question is: How can I check if the 3 boutique hotels that my brother's already identified as his top chocies (The Dean Dublin, Stauntons on the Green, and Albany House) participate in any loyalty/rewards programs?

Sorry if this is the wrong forum. I wasn't really sure where to ask as I'm still very new to the redemption side of this game.

Thanks!