I'm so sorry, these are really difficult times.
I don't know how helpful this is but we've had to deal with several covid deaths during lockdown, and seeing the distress of people unable to do as they normally would, I've ended up making what are mainly 'tribute films' or filmed 'farewells' to try and give people some solace. Funerals etc are always for the living and this is equally true of films.
Depending on if there are people abroad who can help: (this was actually more of a drive-by farewell but the closest to a funeral we could have at that point):
Their nations flags at the house, flowers brought there. A musician played outside, while the coffin was brought in a hearse to the house (with a small flag on display in hearse) with undertaker walking hearse down the road.
Coffin stopped at house while 'important' song was played, then drove down road turned around and slowly passed home for last time. Undertaker doffed hat, bowed, and got into car which drove slowley away to another important piece of music.
Videoed it all and then edited into something with a gentle pace to include music, musician, sky, flowers, some photos of deceased, and put online for relatives and friends inc in another country unable to be there. It wasn't an exact recording more a gently stretched out timeline of the events and left something tangible out of the situation. (the actual disposal had to happen another day without anyone there)
Another friends funeral service was live streamed from the crematorium, but tbh, it was a fixed position camera just showing coffin, celebrant, and top of three family heads 2 mt's apart from each other, and with the spaced out chairs and restrictions, and 'tannoy' style sound, we found it painfully 'dry,' sparse, and perfunctory. It translated badly on film. (obviously this may just be that particular one, but it was how we all felt about it.)
Another friend; young, a direct cremation at beginning of outbreak:- repatriation not allowed and bereft family abroad.
Recorded friends here reading poems, playing music, or speaking of their memories inc what they'd told us of home, to try and connect it all, over zoom, and put together a video interspersed with photos, for their family and friends in their country to try and let them know their relative was loved here, and taken care of as best as could have been done.
Another direct cremation; someone non conventional who loved nature: Collected ashes, brought plants and some seeds, took all to place that was special to them and dug small 'bed' and spread the ashes and planted 'bed' with small sapling in center. (and watered it) Again process filmed, edited to include poem and favorite song and map co-ordinates and put on internet with password. Intention is we go there in the future to remember them.
Three others with variants of above.
What's come out of it all, is while it's been exhausting and it's scary filming painful things and quite unnerving trying to do something creative with such sad material; it turns out that creating something 'beautiful' on film that people could watch and re-watch without it just feeling wretched, seems to be the key to replacing the gathering together to say goodbye element of funerals.
None of this may be right for you, but I hope it helps someone somewhere.