The MNT Reform is now shipping to the crowdfunders and its almost entirely blob free except for a tiny blob to train the LPDDR4 timing during boot. However it is limited to 4 GB of RAM and uses the same i.MX 8M Quad processor and RS9116 WiFi/BT as the Librem 5.
Nicole Faerber says that Purism is planning on making a tablet based on the I.MX 8M after the Librem 5, and I assume that it will have a detachable keyboard like the proposed Librem 10.
PINE64 is already making its Quartz64 SBC based on the Rockchip RK3566, but I haven’t been able to find out if it can boot without blobs. PINE64 is planning on making the PinePhone 2 and probably the PineTab 2 based on the RK3566.
I guess it depends on what you define as a “laptop” and how much processing power you need, but for me a tablet with a detachable keyboard is a “laptop”. However, what I really want is a laptop based on the RK3588 or the Alibaba XuanTie 910, but we will have to see whether they can be run without blobs.