Multiling-o keyboard might fit the bill.

Ive tried multiple ones but I keep going back to Samsung keyboard just because it works so dam well.

Keyboard Designer.

It allows me to put the numbers on the bottom row and the space bar on the 2nd row and the backspace next to the L where it belongs.

SwiftKey for swipe texting

Unexpected Keyboard
https://github.com/Julow/Unexpected-Keyboard
Available on F-Droid
You can pretty much configure the whole layout. Not sure about gif support though.

I want to like futo but I think it just needs more time. I'm using Gboard without the Internet access turned on (I'm using graphene OS) so I'm not worried about Google knowing anything I type.

I mostly use the swipe to text feature and I just haven't found another keyboard that does it better than Gboard (unfortunately)

RIP TouchPal

Gboard now (yes it sucks it sends data to Google but it's the best keyboard and works great on my zFlip cover screen)

i used to use touchpal, because I liked that I could swipe up on a key to get the upper case version of the letter, or swipe in other directions to get other variants.

They enshittifies the product a few years back by inserting ads into every app i was using.

These days i just use the android default, but I miss the functionality touchpal had.