The Acorn 215 (aka Nitefury) gives you access to a development or accelerator FPGA board with the Xilinx Artix 7-200T FPGA, 1Gb of DDR3 DRAM, PCIE Gen2 x 4.
It also has 4 LDVS pairs + 4 GPIO or 12 or GPIO pins (minor board mod required to convert 2.5v LDVS to 3.3v GPIO).
Full schematics available at: https://github.com/RHSResearchLLC/NiteFury-and-LiteFury/blob/master/Hardware/uEVB.pdf
See details of this board at https://www.eevblog.com/forum/fpga/sqrl-acorn-as-an-interesting-artix-7-board/75/
Can be programmed with either Xilinx Vivado (Webpack) or LiteX
Can run Linux linux-on-litex-vexriscv
https://spoolqueue.com/new-design/fpga/migen/litex/2020/08/11/acorn-cle-215.html
The Xilinx Artix-7 200T part on the CLE-215/215+ boards are just about the largest FPGAs from Xilinx you can use with their free version of Vivado (Webpack).
Price: US$70 for payment in crypto; US$80 otherwise
Shipping US$12 by EMS Eco post
Contact me on Telegram @akivah or Discord @apshamilton or leave comment below.