+1 to that , if you are looking for BT specifically will be not easy to replace the Q5S. If you decide on going for dacamps then there would be a decent amount of options. What is the reason you intend to upgrade ?
Some alternatives you can check out are at 25-30k budget.
i) IFI HIPDAC (is priced lower than Q5S , not sure on the performance end)
ii) DAPs like Ibasso DX160/Hiby R5 Pro/Shanling M2X
iii) Bluetooth DAC like IFI ZEN and a portable amp like Pico Slim etc.